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href="/docs/app/building-your-application/rendering/client-components">Client Components</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/rendering/composition-patterns">Composition Patterns</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/rendering/partial-prerendering">Partial Prerendering</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/rendering/edge-and-nodejs-runtimes">Runtimes</a></li></ul><div aria-hidden="true" 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style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/styling/css">CSS</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/styling/tailwind-css">Tailwind CSS</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/styling/sass">Sass</a></li><li 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href="/docs/app/building-your-application/optimizing/fonts">Fonts</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/optimizing/metadata">Metadata</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/optimizing/scripts">Scripts</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/optimizing/package-bundling">Package Bundling</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer 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href="/docs/app/building-your-application/optimizing/open-telemetry">OpenTelemetry</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/optimizing/static-assets">Static Assets</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/optimizing/third-party-libraries">Third Party Libraries</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/optimizing/memory-usage">Memory Usage</a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/configuring">Configuring<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex 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href="/docs/app/building-your-application/configuring/custom-server">Custom Server</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/configuring/draft-mode">Draft Mode</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/configuring/content-security-policy">Content Security Policy</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/configuring/debugging">Debugging</a></li><li class="my-1.5" data-active="false"><a 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href="/docs/app/building-your-application/testing/playwright">Playwright</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/testing/cypress">Cypress</a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/authentication">Authentication</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/deploying">Deploying<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/deploying/production-checklist">Production Checklist</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full 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stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/upgrading/codemods">Codemods</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/upgrading/version-15">Version 15</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/upgrading/version-14">Version 14</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/upgrading/app-router-migration">App Router Migration</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/building-your-application/upgrading/from-create-react-app">Migrating from Create React App</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 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data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/directives/use-client">use client</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/directives/use-server">use server</a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/components">Components<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/components/font">Font</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/components/form"><Form></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/components/image"><Image></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/components/link"><Link></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/components/script"><Script></a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions">File Conventions<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/default">default.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/error">error.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/instrumentation">instrumentation.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/layout">layout.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/loading">loading.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/mdx-components">mdx-components.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/middleware">middleware.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/not-found">not-found.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/page">page.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/route">route.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/route-segment-config">Route Segment Config</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/template">template.js</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/metadata">Metadata Files<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-6"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/metadata/app-icons">favicon, icon, and apple-icon</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/metadata/manifest">manifest.json</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/metadata/opengraph-image">opengraph-image and twitter-image</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/metadata/robots">robots.txt</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/file-conventions/metadata/sitemap">sitemap.xml</a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions">Functions<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/connection">connection</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/cookies">cookies</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/draft-mode">draftMode</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/fetch">fetch</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/generate-image-metadata">generateImageMetadata</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/generate-metadata">generateMetadata</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/generate-sitemaps">generateSitemaps</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/generate-static-params">generateStaticParams</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/generate-viewport">generateViewport</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/headers">headers</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/image-response">ImageResponse</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/next-request">NextRequest</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/next-response">NextResponse</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/not-found">notFound</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/permanentRedirect">permanentRedirect</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/redirect">redirect</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/revalidatePath">revalidatePath</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/revalidateTag">revalidateTag</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/unstable_after"><div class="flex items-center gap-2">unstable_after<svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" clip-rule="evenodd" d="M9 7.6736V7V2.5H7V7V7.6736L6.49655 8.12111L4.38279 10L11.6172 10L9.50345 8.12111L9 7.6736ZM5.5 2.5H4V1H5.5H7H9H10.5H12V2.5H10.5V7L14.0735 10.1765C14.6628 10.7003 15 11.4511 15 12.2396C15 13.7641 13.7641 15 12.2396 15H3.7604C2.23587 15 1 13.7641 1 12.2396C1 11.4511 1.33718 10.7003 1.92649 10.1765L5.5 7V2.5ZM2.5 12.2396C2.5 11.9717 2.58527 11.7133 2.7398 11.5L13.2602 11.5C13.4147 11.7133 13.5 11.9717 13.5 12.2396C13.5 12.9357 12.9357 13.5 12.2396 13.5H3.7604C3.0643 13.5 2.5 12.9357 2.5 12.2396Z" fill="currentColor" /></svg></div></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/unstable_cache"><div class="flex items-center gap-2">unstable_cache<svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" clip-rule="evenodd" d="M1.5 3.5H14.5V5.5H13.5H2.5H1.5V3.5ZM1 7H0V5.5V3.5V2H1.5H14.5H16V3.5V5.5V7H15V12.5C15 13.8807 13.8807 15 12.5 15H3.5C2.11929 15 1 13.8807 1 12.5V7ZM2.5 7V12.5C2.5 13.0523 2.94772 13.5 3.5 13.5H12.5C13.0523 13.5 13.5 13.0523 13.5 12.5V7H2.5ZM6 9.5H6.75H9.25H10V11H9.25H6.75H6V9.5Z" fill="currentColor"/></svg></div></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/unstable_noStore"><div class="flex items-center gap-2">unstable_noStore<svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" clip-rule="evenodd" d="M1.5 3.5H14.5V5.5H13.5H2.5H1.5V3.5ZM1 7H0V5.5V3.5V2H1.5H14.5H16V3.5V5.5V7H15V12.5C15 13.8807 13.8807 15 12.5 15H3.5C2.11929 15 1 13.8807 1 12.5V7ZM2.5 7V12.5C2.5 13.0523 2.94772 13.5 3.5 13.5H12.5C13.0523 13.5 13.5 13.0523 13.5 12.5V7H2.5ZM6 9.5H6.75H9.25H10V11H9.25H6.75H6V9.5Z" fill="currentColor"/></svg></div></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/unstable_rethrow"><div class="flex items-center gap-2">unstable_rethrow<svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" clip-rule="evenodd" d="M9 7.6736V7V2.5H7V7V7.6736L6.49655 8.12111L4.38279 10L11.6172 10L9.50345 8.12111L9 7.6736ZM5.5 2.5H4V1H5.5H7H9H10.5H12V2.5H10.5V7L14.0735 10.1765C14.6628 10.7003 15 11.4511 15 12.2396C15 13.7641 13.7641 15 12.2396 15H3.7604C2.23587 15 1 13.7641 1 12.2396C1 11.4511 1.33718 10.7003 1.92649 10.1765L5.5 7V2.5ZM2.5 12.2396C2.5 11.9717 2.58527 11.7133 2.7398 11.5L13.2602 11.5C13.4147 11.7133 13.5 11.9717 13.5 12.2396C13.5 12.9357 12.9357 13.5 12.2396 13.5H3.7604C3.0643 13.5 2.5 12.9357 2.5 12.2396Z" fill="currentColor" /></svg></div></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/use-params">useParams</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/use-pathname">usePathname</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/use-report-web-vitals">useReportWebVitals</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/use-router">useRouter</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/use-search-params">useSearchParams</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/use-selected-layout-segment">useSelectedLayoutSegment</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/use-selected-layout-segments">useSelectedLayoutSegments</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/functions/userAgent">userAgent</a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/next-config-js">next.config.js Options<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 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10.1765C14.6628 10.7003 15 11.4511 15 12.2396C15 13.7641 13.7641 15 12.2396 15H3.7604C2.23587 15 1 13.7641 1 12.2396C1 11.4511 1.33718 10.7003 1.92649 10.1765L5.5 7V2.5ZM2.5 12.2396C2.5 11.9717 2.58527 11.7133 2.7398 11.5L13.2602 11.5C13.4147 11.7133 13.5 11.9717 13.5 12.2396C13.5 12.9357 12.9357 13.5 12.2396 13.5H3.7604C3.0643 13.5 2.5 12.9357 2.5 12.2396Z" fill="currentColor" /></svg></div></a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/next-config-js/webpack">webpack</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/app/api-reference/next-config-js/webVitalsAttribution"><div class="flex items-center gap-2">webVitalsAttribution<svg 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18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/building-your-application/routing/pages-and-layouts">Pages and Layouts</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/building-your-application/routing/dynamic-routes">Dynamic Routes</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm 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Fetching<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/building-your-application/data-fetching/get-static-props">getStaticProps</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 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href="/docs/pages/building-your-application/upgrading/version-12">Version 12</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/building-your-application/upgrading/version-11">Version 11</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/building-your-application/upgrading/version-10">Version 10</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/building-your-application/upgrading/version-9">Version 9</a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li></ul><ul class="last-of-type:pb-3 hidden"><li class="my-1.5 ml-[3px]" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-1000 font-medium" href="/docs/pages/api-reference">API Reference</a><div data-is-collapsed="false" style="height:auto;opacity:1;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mb-8"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/components">Components<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" 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style="color:currentColor;width:16px;height:16px"><path d="M9 18l6-6-6-6"/></svg></a><div data-is-collapsed="true" style="height:0;opacity:0;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l border-gray-200 pl-3 dark:border-gray-300 ml-4"><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/functions/get-initial-props">getInitialProps</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/functions/get-server-side-props">getServerSideProps</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center 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class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/functions/use-amp">useAmp</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/functions/use-report-web-vitals">useReportWebVitals</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/functions/use-router">useRouter</a></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/functions/userAgent">userAgent</a></li></ul><div aria-hidden="true" class="from-gray-0 pointer-events-none absolute bottom-0 left-0 z-10 h-[6px] w-full bg-gradient-to-t"></div></div></div></li><li class="my-1.5" data-active="false"><a class="hover:text-gray-1000 relative flex w-full cursor-pointer items-center justify-between rounded-md py-1 pl-2 text-left text-sm text-gray-900" href="/docs/pages/api-reference/next-config-js">next.config.js Options<svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:16px;height:16px"><path d="M6 9l6 6 6-6"/></svg></a><div data-is-collapsed="false" style="height:auto;opacity:1;overflow:hidden;display:flex;flex-direction:column"><div class="relative"><ul class="px-0.5 last-of-type:mb-0 mr-6 border-l 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href="https://vercel.com/solutions/nextjs?utm_source=next-site&utm_medium=web&utm_campaign=managed_nextjs_solutions_page">Managed Next.js (Vercel) <svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></a><button class="hover:text-gray-1000 flex items-center gap-x-1.5 text-sm text-gray-900 transition-opacity opacity-0" type="button">Scroll to top <svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><circle cx="12" cy="12" r="10"/><path d="M16 12l-4-4-4 4"/><path d="M12 16V8"/></svg></button></div></nav><article class="mt-4 w-full min-w-0 max-w-6xl px-1 md:px-6" style="min-height:calc(100vh - 103px)" data-docs-container=""><div class="-mt-4 mb-7 md:mb-10 md:mt-2"><div class="flex flex-wrap items-center gap-2 text-sm"><a class="text-gray-700 hover:text-gray-600" href="/docs/pages/api-reference">API Reference</a><span class="text-gray-700"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:18px;height:18px"><path d="M9 18l6-6-6-6"/></svg></span><a class="text-gray-700 hover:text-gray-600" href="/docs/pages/api-reference/next-config-js">next.config.js Options</a><span class="text-gray-700"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:18px;height:18px"><path d="M9 18l6-6-6-6"/></svg></span><span class="text-gray-1000 shrink-0">headers</span></div></div><div class="prose prose-vercel max-w-none" data-docs="true"><h1 class="break-words">headers</h1> <p>Headers allow you to set custom HTTP headers on the response to an incoming request on a given path.</p> <p>To set custom HTTP headers you can use the <code>headers</code> key in <code>next.config.js</code>:</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/about'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-custom-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'my custom header value'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-another-custom-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'my other custom header value'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <p><code>headers</code> is an async function that expects an array to be returned holding objects with <code>source</code> and <code>headers</code> properties:</p> <ul> <li><code>source</code> is the incoming request path pattern.</li> <li><code>headers</code> is an array of response header objects, with <code>key</code> and <code>value</code> properties.</li> <li><code>basePath</code>: <code>false</code> or <code>undefined</code> - if false the basePath won't be included when matching, can be used for external rewrites only.</li> <li><code>locale</code>: <code>false</code> or <code>undefined</code> - whether the locale should not be included when matching.</li> <li><code>has</code> is an array of <a href="#header-cookie-and-query-matching">has objects</a> with the <code>type</code>, <code>key</code> and <code>value</code> properties.</li> <li><code>missing</code> is an array of <a href="#header-cookie-and-query-matching">missing objects</a> with the <code>type</code>, <code>key</code> and <code>value</code> properties.</li> </ul> <p>Headers are checked before the filesystem which includes pages and <code>/public</code> files.</p> <h2 id="header-overriding-behavior" data-docs-heading=""><a href="#header-overriding-behavior">Header Overriding Behavior<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2> <p>If two headers match the same path and set the same header key, the last header key will override the first. Using the below headers, the path <code>/hello</code> will result in the header <code>x-hello</code> being <code>world</code> due to the last header value set being <code>world</code>.</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/:path*'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'there'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'world'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h2 id="path-matching" data-docs-heading=""><a href="#path-matching">Path Matching<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2> <p>Path matches are allowed, for example <code>/blog/:slug</code> will match <code>/blog/hello-world</code> (no nested paths):</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/blog/:slug'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-slug'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">':slug'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// Matched parameters can be used in the value</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-slug-:slug'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// Matched parameters can be used in the key</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'my other custom header value'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="wildcard-path-matching" data-docs-heading=""><a href="#wildcard-path-matching">Wildcard Path Matching<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p>To match a wildcard path you can use <code>*</code> after a parameter, for example <code>/blog/:slug*</code> will match <code>/blog/a/b/c/d/hello-world</code>:</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/blog/:slug*'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-slug'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">':slug*'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// Matched parameters can be used in the value</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-slug-:slug*'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// Matched parameters can be used in the key</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'my other custom header value'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="regex-path-matching" data-docs-heading=""><a href="#regex-path-matching">Regex Path Matching<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p>To match a regex path you can wrap the regex in parenthesis after a parameter, for example <code>/blog/:slug(\\d{1,})</code> will match <code>/blog/123</code> but not <code>/blog/abc</code>:</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/blog/:post(\\d{1,})'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-post'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">':post'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <p>The following characters <code>(</code>, <code>)</code>, <code>{</code>, <code>}</code>, <code>:</code>, <code>*</code>, <code>+</code>, <code>?</code> are used for regex path matching, so when used in the <code>source</code> as non-special values they must be escaped by adding <code>\\</code> before them:</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// this will match `/english(default)/something` being requested</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/english\$default\$/:slug'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'value'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h2 id="header-cookie-and-query-matching" data-docs-heading=""><a href="#header-cookie-and-query-matching">Header, Cookie, and Query Matching<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2> <p>To only apply a header when header, cookie, or query values also match the <code>has</code> field or don't match the <code>missing</code> field can be used. Both the <code>source</code> and all <code>has</code> items must match and all <code>missing</code> items must not match for the header to be applied.</p> <p><code>has</code> and <code>missing</code> items can have the following fields:</p> <ul> <li><code>type</code>: <code>String</code> - must be either <code>header</code>, <code>cookie</code>, <code>host</code>, or <code>query</code>.</li> <li><code>key</code>: <code>String</code> - the key from the selected type to match against.</li> <li><code>value</code>: <code>String</code> or <code>undefined</code> - the value to check for, if undefined any value will match. A regex like string can be used to capture a specific part of the value, e.g. if the value <code>first-(?<paramName>.*)</code> is used for <code>first-second</code> then <code>second</code> will be usable in the destination with <code>:paramName</code>.</li> </ul> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// if the header `x-add-header` is present,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// the `x-another-header` header will be applied</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/:path*'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> has</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> type</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-add-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-another-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// if the header `x-no-header` is not present,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// the `x-another-header` header will be applied</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/:path*'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> missing</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> type</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-no-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-another-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// if the source, query, and cookie are matched,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// the `x-authorized` header will be applied</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/specific/:path*'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> has</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> type</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'query'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'page'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// the page value will not be available in the</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// header key/values since value is provided and</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// doesn't use a named capture group e.g. (?<page>home)</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'home'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> type</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'cookie'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'authorized'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'true'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-authorized'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">':authorized'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// if the header `x-authorized` is present and</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// contains a matching value, the `x-another-header` will be applied</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/:path*'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> has</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> type</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-authorized'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'(?<authorized>yes|true)'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-another-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">':authorized'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// if the host is `example.com`,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// this header will be applied</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/:path*'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> has</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> type</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'host'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'example.com'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-another-header'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">':authorized'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h2 id="headers-with-basepath-support" data-docs-heading=""><a href="#headers-with-basepath-support">Headers with basePath support<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2> <p>When leveraging <a href="/docs/app/api-reference/next-config-js/basePath"><code>basePath</code> support</a> with headers each <code>source</code> is automatically prefixed with the <code>basePath</code> unless you add <code>basePath: false</code> to the header:</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> basePath</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/docs'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"> </span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/with-basePath'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// becomes /docs/with-basePath</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'world'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/without-basePath'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// is not modified since basePath: false is set</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'world'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> basePath</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">false</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h2 id="headers-with-i18n-support" data-docs-heading=""><a href="#headers-with-i18n-support">Headers with i18n support<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2>  <p>When leveraging <a href="/docs/pages/building-your-application/routing/internationalization"><code>i18n</code> support</a> with headers each <code>source</code> is automatically prefixed to handle the configured <code>locales</code> unless you add <code>locale: false</code> to the header. If <code>locale: false</code> is used you must prefix the <code>source</code> with a locale for it to be matched correctly.</p> <div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg height="17" style="margin-left:-1.5px" viewBox="0 0 50 50" width="17" xmlns="http://www.w3.org/2000/svg"><path d="M 43.335938 4 L 6.667969 4 C 5.195313 4 4 5.195313 4 6.667969 L 4 43.332031 C 4 44.804688 5.195313 46 6.667969 46 L 43.332031 46 C 44.804688 46 46 44.804688 46 43.335938 L 46 6.667969 C 46 5.195313 44.804688 4 43.335938 4 Z M 27 36.183594 C 27 40.179688 24.65625 42 21.234375 42 C 18.140625 42 15.910156 39.925781 15 38 L 18.144531 36.097656 C 18.75 37.171875 19.671875 38 21 38 C 22.269531 38 23 37.503906 23 35.574219 L 23 23 L 27 23 Z M 35.675781 42 C 32.132813 42 30.121094 40.214844 29 38 L 32 36 C 32.816406 37.335938 33.707031 38.613281 35.589844 38.613281 C 37.171875 38.613281 38 37.824219 38 36.730469 C 38 35.425781 37.140625 34.960938 35.402344 34.199219 L 34.449219 33.789063 C 31.695313 32.617188 29.863281 31.148438 29.863281 28.039063 C 29.863281 25.179688 32.046875 23 35.453125 23 C 37.878906 23 39.621094 23.84375 40.878906 26.054688 L 37.910156 27.964844 C 37.253906 26.789063 36.550781 26.328125 35.453125 26.328125 C 34.335938 26.328125 33.628906 27.039063 33.628906 27.964844 C 33.628906 29.109375 34.335938 29.570313 35.972656 30.28125 L 36.925781 30.691406 C 40.171875 32.078125 42 33.496094 42 36.683594 C 42 40.117188 39.300781 42 35.675781 42 Z" fill="currentColor"></path></svg></div><span class="code-block_filenameP__02nok">next.config.js</span></div><div class="code-block_actions__yphRf"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-constant)">module</span><span style="color:var(--shiki-color-text)">.</span><span style="color:var(--shiki-token-constant)">exports</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> i18n</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> locales</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span><span style="color:var(--shiki-token-string-expression)">'en'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'fr'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'de'</span><span style="color:var(--shiki-color-text)">]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> defaultLocale</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'en'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"> </span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/with-locale'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// automatically handles all locales</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'world'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// does not handle locales automatically since locale: false is set</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/nl/with-locale-manual'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> locale</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">false</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'world'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// this matches '/' since `en` is the defaultLocale</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/en'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> locale</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">false</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'world'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// this gets converted to /(en|fr|de)/(.*) so will not match the top-level</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// `/` or `/fr` routes like /:path* would</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'/(.*)'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'x-hello'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'world'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h2 id="cache-control" data-docs-heading=""><a href="#cache-control">Cache-Control<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2> <p>Next.js sets the <code>Cache-Control</code> header of <code>public, max-age=31536000, immutable</code> for truly immutable assets. It cannot be overridden. These immutable files contain a SHA-hash in the file name, so they can be safely cached indefinitely. For example, <a href="/docs/app/building-your-application/optimizing/images#local-images">Static Image Imports</a>. You cannot set <code>Cache-Control</code> headers in <code>next.config.js</code> for these assets.</p> <p>However, you can set <code>Cache-Control</code> headers for other responses or data.</p>  <p>If you need to revalidate the cache of a page that has been <a href="/docs/pages/building-your-application/rendering/static-site-generation">statically generated</a>, you can do so by setting the <code>revalidate</code> prop in the page's <a href="/docs/pages/building-your-application/data-fetching/get-static-props"><code>getStaticProps</code></a> function.</p><p>To cache the response from an <a href="/docs/pages/building-your-application/routing/api-routes">API Route</a>, you can use <code>res.setHeader</code>:</p><div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg fill="none" height="14" viewBox="0 0 512 512" width="14" xmlns="http://www.w3.org/2000/svg"><rect fill="currentColor" height="512" rx="50" width="512"></rect><rect fill="currentColor" height="512" rx="50" width="512"></rect><path clip-rule="evenodd" d="m316.939 407.424v50.061c8.138 4.172 17.763 7.3 28.875 9.386s22.823 3.129 35.135 3.129c11.999 0 23.397-1.147 34.196-3.442 10.799-2.294 20.268-6.075 28.406-11.342 8.138-5.266 14.581-12.15 19.328-20.65s7.121-19.007 7.121-31.522c0-9.074-1.356-17.026-4.069-23.857s-6.625-12.906-11.738-18.225c-5.112-5.319-11.242-10.091-18.389-14.315s-15.207-8.213-24.18-11.967c-6.573-2.712-12.468-5.345-17.685-7.9-5.217-2.556-9.651-5.163-13.303-7.822-3.652-2.66-6.469-5.476-8.451-8.448-1.982-2.973-2.974-6.336-2.974-10.091 0-3.441.887-6.544 2.661-9.308s4.278-5.136 7.512-7.118c3.235-1.981 7.199-3.52 11.894-4.615 4.696-1.095 9.912-1.642 15.651-1.642 4.173 0 8.581.313 13.224.938 4.643.626 9.312 1.591 14.008 2.894 4.695 1.304 9.259 2.947 13.694 4.928 4.434 1.982 8.529 4.276 12.285 6.884v-46.776c-7.616-2.92-15.937-5.084-24.962-6.492s-19.381-2.112-31.066-2.112c-11.895 0-23.163 1.278-33.805 3.833s-20.006 6.544-28.093 11.967c-8.086 5.424-14.476 12.333-19.171 20.729-4.695 8.395-7.043 18.433-7.043 30.114 0 14.914 4.304 27.638 12.912 38.172 8.607 10.533 21.675 19.45 39.204 26.751 6.886 2.816 13.303 5.579 19.25 8.291s11.086 5.528 15.415 8.448c4.33 2.92 7.747 6.101 10.252 9.543 2.504 3.441 3.756 7.352 3.756 11.733 0 3.233-.783 6.231-2.348 8.995s-3.939 5.162-7.121 7.196-7.147 3.624-11.894 4.771c-4.748 1.148-10.303 1.721-16.668 1.721-10.851 0-21.597-1.903-32.24-5.71-10.642-3.806-20.502-9.516-29.579-17.13zm-84.159-123.342h64.22v-41.082h-179v41.082h63.906v182.918h50.874z" fill="var(--ds-background-100)" fill-rule="evenodd"></path></svg></div><span class="code-block_filenameP__02nok">pages/api/hello.ts</span></div><div class="code-block_actions__yphRf"><div class="switcher_container__cVe_S"><div aria-hidden="true" class="switcher_visible__173Bo"><span>TypeScript</span><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="width:16px;height:16px;color:currentColor" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" clip-rule="evenodd" d="M14.0607 5.49999L13.5303 6.03032L8.7071 10.8535C8.31658 11.2441 7.68341 11.2441 7.29289 10.8535L2.46966 6.03032L1.93933 5.49999L2.99999 4.43933L3.53032 4.96966L7.99999 9.43933L12.4697 4.96966L13 4.43933L14.0607 5.49999Z" fill="currentColor"/></svg></div><select class="switcher_select__EKOIH"><option value="JavaScript">JavaScript</option><option value="TypeScript" selected="">TypeScript</option></select></div><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-keyword)">import</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">type</span><span style="color:var(--shiki-color-text)"> { NextApiRequest</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> NextApiResponse } </span><span style="color:var(--shiki-token-keyword)">from</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'next'</span></span> <span class="line"> </span> <span class="line"><span style="color:var(--shiki-token-keyword)">type</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">ResponseData</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> message</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">string</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span> <span class="line"> </span> <span class="line"><span style="color:var(--shiki-token-keyword)">export</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">default</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">function</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">handler</span><span style="color:var(--shiki-color-text)">(</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> req</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">NextApiRequest</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> res</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">NextApiResponse</span><span style="color:var(--shiki-color-text)"><</span><span style="color:var(--shiki-token-function)">ResponseData</span><span style="color:var(--shiki-color-text)">></span></span> <span class="line"><span style="color:var(--shiki-color-text)">) {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">res</span><span style="color:var(--shiki-token-function)">.setHeader</span><span style="color:var(--shiki-color-text)">(</span><span style="color:var(--shiki-token-string-expression)">'Cache-Control'</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'s-maxage=86400'</span><span style="color:var(--shiki-color-text)">)</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">res</span><span style="color:var(--shiki-token-function)">.status</span><span style="color:var(--shiki-color-text)">(</span><span style="color:var(--shiki-token-constant)">200</span><span style="color:var(--shiki-color-text)">)</span><span style="color:var(--shiki-token-function)">.json</span><span style="color:var(--shiki-color-text)">({ message</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'Hello from Next.js!'</span><span style="color:var(--shiki-color-text)"> })</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div><p>You can also use caching headers (<code>Cache-Control</code>) inside <code>getServerSideProps</code> to cache dynamic responses. For example, using <a href="https://web.dev/stale-while-revalidate/" rel="noopener noreferrer nofollow" target="_blank"><code>stale-while-revalidate</code><span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a>.</p><div class="code-block_wrapper__t6FCO code-block_hasFileName__ezlBD not-prose"><div class="code-block_header__t3NRd"><div class="code-block_fileName__HmSv1"><div aria-hidden="true" class="code-block_iconWrapper__TuHFk"><svg fill="none" height="14" viewBox="0 0 512 512" width="14" xmlns="http://www.w3.org/2000/svg"><rect fill="currentColor" height="512" rx="50" width="512"></rect><rect fill="currentColor" height="512" rx="50" width="512"></rect><path clip-rule="evenodd" d="m316.939 407.424v50.061c8.138 4.172 17.763 7.3 28.875 9.386s22.823 3.129 35.135 3.129c11.999 0 23.397-1.147 34.196-3.442 10.799-2.294 20.268-6.075 28.406-11.342 8.138-5.266 14.581-12.15 19.328-20.65s7.121-19.007 7.121-31.522c0-9.074-1.356-17.026-4.069-23.857s-6.625-12.906-11.738-18.225c-5.112-5.319-11.242-10.091-18.389-14.315s-15.207-8.213-24.18-11.967c-6.573-2.712-12.468-5.345-17.685-7.9-5.217-2.556-9.651-5.163-13.303-7.822-3.652-2.66-6.469-5.476-8.451-8.448-1.982-2.973-2.974-6.336-2.974-10.091 0-3.441.887-6.544 2.661-9.308s4.278-5.136 7.512-7.118c3.235-1.981 7.199-3.52 11.894-4.615 4.696-1.095 9.912-1.642 15.651-1.642 4.173 0 8.581.313 13.224.938 4.643.626 9.312 1.591 14.008 2.894 4.695 1.304 9.259 2.947 13.694 4.928 4.434 1.982 8.529 4.276 12.285 6.884v-46.776c-7.616-2.92-15.937-5.084-24.962-6.492s-19.381-2.112-31.066-2.112c-11.895 0-23.163 1.278-33.805 3.833s-20.006 6.544-28.093 11.967c-8.086 5.424-14.476 12.333-19.171 20.729-4.695 8.395-7.043 18.433-7.043 30.114 0 14.914 4.304 27.638 12.912 38.172 8.607 10.533 21.675 19.45 39.204 26.751 6.886 2.816 13.303 5.579 19.25 8.291s11.086 5.528 15.415 8.448c4.33 2.92 7.747 6.101 10.252 9.543 2.504 3.441 3.756 7.352 3.756 11.733 0 3.233-.783 6.231-2.348 8.995s-3.939 5.162-7.121 7.196-7.147 3.624-11.894 4.771c-4.748 1.148-10.303 1.721-16.668 1.721-10.851 0-21.597-1.903-32.24-5.71-10.642-3.806-20.502-9.516-29.579-17.13zm-84.159-123.342h64.22v-41.082h-179v41.082h63.906v182.918h50.874z" fill="var(--ds-background-100)" fill-rule="evenodd"></path></svg></div><span class="code-block_filenameP__02nok">pages/index.tsx</span></div><div class="code-block_actions__yphRf"><div class="switcher_container__cVe_S"><div aria-hidden="true" class="switcher_visible__173Bo"><span>TypeScript</span><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="width:16px;height:16px;color:currentColor" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" clip-rule="evenodd" d="M14.0607 5.49999L13.5303 6.03032L8.7071 10.8535C8.31658 11.2441 7.68341 11.2441 7.29289 10.8535L2.46966 6.03032L1.93933 5.49999L2.99999 4.43933L3.53032 4.96966L7.99999 9.43933L12.4697 4.96966L13 4.43933L14.0607 5.49999Z" fill="currentColor"/></svg></div><select class="switcher_select__EKOIH"><option value="JavaScript">JavaScript</option><option value="TypeScript" selected="">TypeScript</option></select></div><button aria-label="Copy code" class="code-block_copyButton__uo5Yu" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button></div></div><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-token-keyword)">import</span><span style="color:var(--shiki-color-text)"> { GetStaticProps</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> GetStaticPaths</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> GetServerSideProps } </span><span style="color:var(--shiki-token-keyword)">from</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'next'</span></span> <span class="line"> </span> <span class="line"><span style="color:var(--shiki-token-comment)">// This value is considered fresh for ten seconds (s-maxage=10).</span></span> <span class="line"><span style="color:var(--shiki-token-comment)">// If a request is repeated within the next 10 seconds, the previously</span></span> <span class="line"><span style="color:var(--shiki-token-comment)">// cached value will still be fresh. If the request is repeated before 59 seconds,</span></span> <span class="line"><span style="color:var(--shiki-token-comment)">// the cached value will be stale but still render (stale-while-revalidate=59).</span></span> <span class="line"><span style="color:var(--shiki-token-comment)">//</span></span> <span class="line"><span style="color:var(--shiki-token-comment)">// In the background, a revalidation request will be made to populate the cache</span></span> <span class="line"><span style="color:var(--shiki-token-comment)">// with a fresh value. If you refresh the page, you will see the new value.</span></span> <span class="line"><span style="color:var(--shiki-token-keyword)">export</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">const</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">getServerSideProps</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-color-text)"> (</span><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-color-text)"> (context) </span><span style="color:var(--shiki-token-keyword)">=></span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-constant)">context</span><span style="color:var(--shiki-token-function)">.</span><span style="color:var(--shiki-token-constant)">res</span><span style="color:var(--shiki-token-function)">.setHeader</span><span style="color:var(--shiki-color-text)">(</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'Cache-Control'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'public, s-maxage=10, stale-while-revalidate=59'</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> )</span></span> <span class="line"> </span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> props</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> {}</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}) </span><span style="color:var(--shiki-token-keyword)">satisfies</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-function)">GetServerSideProps</span></span></code></pre></div> <h2 id="options" data-docs-heading=""><a href="#options">Options<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2> <h3 id="cors" data-docs-heading=""><a href="#cors">CORS<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p><a href="https://developer.mozilla.org/docs/Web/HTTP/CORS" rel="noopener noreferrer nofollow" target="_blank">Cross-Origin Resource Sharing (CORS)<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> is a security feature that allows you to control which sites can access your resources. You can set the <code>Access-Control-Allow-Origin</code> header to allow a specific origin to access your API Endpoints.</p> <div class="code-block_wrapper__t6FCO not-prose"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu code-block_copyFloatingButton__PsMvB" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-color-text)">async </span><span style="color:var(--shiki-token-function)">headers</span><span style="color:var(--shiki-color-text)">() {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-keyword)">return</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> source</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">"/api/:path*"</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> headers</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> [</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">"Access-Control-Allow-Origin"</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">"*"</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-comment)">// Set your origin</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">"Access-Control-Allow-Methods"</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">"GET, POST, PUT, DELETE, OPTIONS"</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> {</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">"Access-Control-Allow-Headers"</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">"Content-Type, Authorization"</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ]</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> ];</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> }</span><span style="color:var(--shiki-token-punctuation)">,</span></span></code></pre></div> <h3 id="x-dns-prefetch-control" data-docs-heading=""><a href="#x-dns-prefetch-control">X-DNS-Prefetch-Control<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p><a href="https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control" rel="noopener noreferrer nofollow" target="_blank">This header<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> controls DNS prefetching, allowing browsers to proactively perform domain name resolution on external links, images, CSS, JavaScript, and more. This prefetching is performed in the background, so the <a href="https://developer.mozilla.org/docs/Glossary/DNS" rel="noopener noreferrer nofollow" target="_blank">DNS<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> is more likely to be resolved by the time the referenced items are needed. This reduces latency when the user clicks a link.</p> <div class="code-block_wrapper__t6FCO not-prose"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu code-block_copyFloatingButton__PsMvB" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-color-text)">{</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'X-DNS-Prefetch-Control'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'on'</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="strict-transport-security" data-docs-heading=""><a href="#strict-transport-security">Strict-Transport-Security<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p><a href="https://developer.mozilla.org/docs/Web/HTTP/Headers/Strict-Transport-Security" rel="noopener noreferrer nofollow" target="_blank">This header<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> informs browsers it should only be accessed using HTTPS, instead of using HTTP. Using the configuration below, all present and future subdomains will use HTTPS for a <code>max-age</code> of 2 years. This blocks access to pages or subdomains that can only be served over HTTP.</p> <p>If you're deploying to <a href="https://vercel.com/docs/concepts/edge-network/headers#strict-transport-security?utm_source=next-site&utm_medium=docs&utm_campaign=next-website" rel="noopener noreferrer" target="_blank">Vercel<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a>, this header is not necessary as it's automatically added to all deployments unless you declare <code>headers</code> in your <code>next.config.js</code>.</p> <div class="code-block_wrapper__t6FCO not-prose"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu code-block_copyFloatingButton__PsMvB" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-color-text)">{</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'Strict-Transport-Security'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'max-age=63072000; includeSubDomains; preload'</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="x-frame-options" data-docs-heading=""><a href="#x-frame-options">X-Frame-Options<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p><a href="https://developer.mozilla.org/docs/Web/HTTP/Headers/X-Frame-Options" rel="noopener noreferrer nofollow" target="_blank">This header<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> indicates whether the site should be allowed to be displayed within an <code>iframe</code>. This can prevent against clickjacking attacks.</p> <p><strong>This header has been superseded by CSP's <code>frame-ancestors</code> option</strong>, which has better support in modern browsers (see <a href="/docs/app/building-your-application/configuring/content-security-policy">Content Security Policy</a> for configuration details).</p> <div class="code-block_wrapper__t6FCO not-prose"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu code-block_copyFloatingButton__PsMvB" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-color-text)">{</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'X-Frame-Options'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'SAMEORIGIN'</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="permissions-policy" data-docs-heading=""><a href="#permissions-policy">Permissions-Policy<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p><a href="https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy" rel="noopener noreferrer nofollow" target="_blank">This header<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> allows you to control which features and APIs can be used in the browser. It was previously named <code>Feature-Policy</code>.</p> <div class="code-block_wrapper__t6FCO not-prose"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu code-block_copyFloatingButton__PsMvB" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-color-text)">{</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'Permissions-Policy'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'camera=(), microphone=(), geolocation=(), browsing-topics=()'</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="x-content-type-options" data-docs-heading=""><a href="#x-content-type-options">X-Content-Type-Options<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p><a href="https://developer.mozilla.org/docs/Web/HTTP/Headers/X-Content-Type-Options" rel="noopener noreferrer nofollow" target="_blank">This header<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> prevents the browser from attempting to guess the type of content if the <code>Content-Type</code> header is not explicitly set. This can prevent XSS exploits for websites that allow users to upload and share files.</p> <p>For example, a user trying to download an image, but having it treated as a different <code>Content-Type</code> like an executable, which could be malicious. This header also applies to downloading browser extensions. The only valid value for this header is <code>nosniff</code>.</p> <div class="code-block_wrapper__t6FCO not-prose"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu code-block_copyFloatingButton__PsMvB" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-color-text)">{</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'X-Content-Type-Options'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'nosniff'</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="referrer-policy" data-docs-heading=""><a href="#referrer-policy">Referrer-Policy<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p><a href="https://developer.mozilla.org/docs/Web/HTTP/Headers/Referrer-Policy" rel="noopener noreferrer nofollow" target="_blank">This header<span class="inline-flex"><svg class="with-icon_icon__MHUeb" data-testid="geist-icon" fill="none" height="24" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" viewBox="0 0 24 24" width="24" style="color:currentColor;width:14px;height:14px"><path d="M7 17L17 7"/><path d="M7 7h10v10"/></svg></span></a> controls how much information the browser includes when navigating from the current website (origin) to another.</p> <div class="code-block_wrapper__t6FCO not-prose"><button aria-label="Copy code" class="code-block_copyButton__uo5Yu code-block_copyFloatingButton__PsMvB" type="button"><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M2.75 0.5C1.7835 0.5 1 1.2835 1 2.25V9.75C1 10.7165 1.7835 11.5 2.75 11.5H3.75H4.5V10H3.75H2.75C2.61193 10 2.5 9.88807 2.5 9.75V2.25C2.5 2.11193 2.61193 2 2.75 2H8.25C8.38807 2 8.5 2.11193 8.5 2.25V3H10V2.25C10 1.2835 9.2165 0.5 8.25 0.5H2.75ZM7.75 4.5C6.7835 4.5 6 5.2835 6 6.25V13.75C6 14.7165 6.7835 15.5 7.75 15.5H13.25C14.2165 15.5 15 14.7165 15 13.75V6.25C15 5.2835 14.2165 4.5 13.25 4.5H7.75ZM7.5 6.25C7.5 6.11193 7.61193 6 7.75 6H13.25C13.3881 6 13.5 6.11193 13.5 6.25V13.75C13.5 13.8881 13.3881 14 13.25 14H7.75C7.61193 14 7.5 13.8881 7.5 13.75V6.25Z" fill="currentColor"/></svg><svg data-testid="geist-icon" height="16" stroke-linejoin="round" style="color:currentColor" viewBox="0 0 16 16" width="16" aria-hidden="true"><path fill-rule="evenodd" clip-rule="evenodd" d="M15.5607 3.99999L15.0303 4.53032L6.23744 13.3232C5.55403 14.0066 4.44599 14.0066 3.76257 13.3232L4.2929 12.7929L3.76257 13.3232L0.969676 10.5303L0.439346 9.99999L1.50001 8.93933L2.03034 9.46966L4.82323 12.2626C4.92086 12.3602 5.07915 12.3602 5.17678 12.2626L13.9697 3.46966L14.5 2.93933L15.5607 3.99999Z" fill="currentColor"/></svg></button><pre class="code-block_pre___OLfy"><code class="code-block_code__isn_V"><span class="line"><span style="color:var(--shiki-color-text)">{</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> key</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'Referrer-Policy'</span><span style="color:var(--shiki-token-punctuation)">,</span></span> <span class="line"><span style="color:var(--shiki-color-text)"> value</span><span style="color:var(--shiki-token-punctuation)">:</span><span style="color:var(--shiki-color-text)"> </span><span style="color:var(--shiki-token-string-expression)">'origin-when-cross-origin'</span></span> <span class="line"><span style="color:var(--shiki-color-text)">}</span></span></code></pre></div> <h3 id="content-security-policy" data-docs-heading=""><a href="#content-security-policy">Content-Security-Policy<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h3> <p>Learn more about adding a <a href="/docs/app/building-your-application/configuring/content-security-policy">Content Security Policy</a> to your application.</p> <h2 id="version-history" data-docs-heading=""><a href="#version-history">Version History<span><svg viewBox="0 0 16 16" height="0.7em" width="0.7em"> <g stroke-width="1.2" fill="none" stroke="currentColor"> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M8.995,7.005 L8.995,7.005c1.374,1.374,1.374,3.601,0,4.975l-1.99,1.99c-1.374,1.374-3.601,1.374-4.975,0l0,0c-1.374-1.374-1.374-3.601,0-4.975 l1.748-1.698"></path> <path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M7.005,8.995 L7.005,8.995c-1.374-1.374-1.374-3.601,0-4.975l1.99-1.99c1.374-1.374,3.601-1.374,4.975,0l0,0c1.374,1.374,1.374,3.601,0,4.975 l-1.748,1.698"></path> </g> </svg></span></a></h2> <div class="overflow-x-auto"><table class="w-full table-auto"><thead><tr><th>Version</th><th>Changes</th></tr></thead><tbody><tr><td><code>v13.3.0</code></td><td><code>missing</code> added.</td></tr><tr><td><code>v10.2.0</code></td><td><code>has</code> added.</td></tr><tr><td><code>v9.5.0</code></td><td>Headers added.</td></tr></tbody></table></div></div><nav aria-label="pagination" class="pagination_pagination__aeiwF my-12 border-t border-gray-200 pt-8"><a aria-label="Go to previous page: generateEtags" class="pagination_item__pRz03" href="/docs/pages/api-reference/next-config-js/generateEtags"><span class="text_wrapper__i87JK pagination_label__GgUO7" data-version="v1" style="--text-color:var(--ds-gray-1000);--text-size:0.8125rem;--text-line-height:1.125rem;--text-letter-spacing:initial;--text-weight:400">Previous</span><div class="pagination_title__uxdAV"><span class="text_wrapper__i87JK" data-version="v1" 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These conformance rules help you use Next.js in an optimal way.\",\"path\":\"13/app/building-your-application/configuring/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Environment Variables\",\"description\":\"Learn to add and access environment variables in your Next.js application.\",\"path\":\"13/app/building-your-application/configuring/environment-variables\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Absolute Imports and Module Path Aliases\",\"description\":\"Configure module path aliases that allow you to remap certain import paths.\",\"path\":\"13/app/building-your-application/configuring/absolute-imports-and-module-aliases\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"MDX\",\"description\":\"Learn how to configure MDX to write JSX in your markdown files.\",\"path\":\"13/app/building-your-application/configuring/mdx\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"src Directory\",\"description\":\"Save pages under the `src` directory as an alternative to the root `pages` directory.\",\"path\":\"13/app/building-your-application/configuring/src-directory\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Draft Mode\",\"description\":\"Next.js has draft mode to toggle between static and dynamic pages. You can learn how it works with App Router here.\",\"path\":\"13/app/building-your-application/configuring/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Content Security Policy\",\"description\":\"Learn how to set a Content Security Policy (CSP) for your Next.js application.\",\"path\":\"13/app/building-your-application/configuring/content-security-policy\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Deploying\",\"description\":\"Learn how to deploy your Next.js app to production, either managed or self-hosted.\",\"path\":\"13/app/building-your-application/deploying\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Static Exports\",\"description\":\"Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server.\",\"path\":\"13/app/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"13/app/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"13/app/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"App Router Migration\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"13/app/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Vite\",\"description\":\"Learn how to migrate your existing React application from Vite to Next.js.\",\"path\":\"13/app/building-your-application/upgrading/from-vite\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the App Router.\",\"path\":\"13/app/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components.\",\"path\":\"13/app/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"Optimizing loading web fonts with the built-in `next/font` loaders.\",\"path\":\"13/app/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"13/app/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"Enable fast client-side navigation with the 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for the layout.js file.\",\"path\":\"13/app/api-reference/file-conventions/layout\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"loading.js\",\"description\":\"API reference for the loading.js file.\",\"path\":\"13/app/api-reference/file-conventions/loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"not-found.js\",\"description\":\"API reference for the not-found.js file.\",\"path\":\"13/app/api-reference/file-conventions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"page.js\",\"description\":\"API reference for the page.js file.\",\"path\":\"13/app/api-reference/file-conventions/page\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"route.js\",\"description\":\"API reference for the route.js special file.\",\"path\":\"13/app/api-reference/file-conventions/route\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Segment Config\",\"description\":\"Learn about how to configure options for Next.js route 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and twitter-image\",\"description\":\"API Reference for the Open Graph Image and Twitter Image file conventions.\",\"path\":\"13/app/api-reference/file-conventions/metadata/opengraph-image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"robots.txt\",\"description\":\"API Reference for robots.txt file.\",\"path\":\"13/app/api-reference/file-conventions/metadata/robots\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"sitemap.xml\",\"description\":\"API Reference for the sitemap.xml file.\",\"path\":\"13/app/api-reference/file-conventions/metadata/sitemap\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Next.js Functions and Hooks.\",\"path\":\"13/app/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"cookies\",\"description\":\"API Reference for the cookies function.\",\"path\":\"13/app/api-reference/functions/cookies\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"draftMode\",\"description\":\"API Reference for the draftMode function.\",\"path\":\"13/app/api-reference/functions/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"fetch\",\"description\":\"API reference for the extended fetch function.\",\"path\":\"13/app/api-reference/functions/fetch\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateImageMetadata\",\"description\":\"Learn how to generate multiple images in a single Metadata API special file.\",\"path\":\"13/app/api-reference/functions/generate-image-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateMetadata\",\"description\":\"Learn how to add Metadata to your Next.js application for improved search engine optimization (SEO) and web shareability.\",\"path\":\"13/app/api-reference/functions/generate-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateStaticParams\",\"description\":\"API reference for the generateStaticParams function.\",\"path\":\"13/app/api-reference/functions/generate-static-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"API reference for the headers function.\",\"path\":\"13/app/api-reference/functions/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ImageResponse\",\"description\":\"API Reference for the ImageResponse constructor.\",\"path\":\"13/app/api-reference/functions/image-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextRequest\",\"description\":\"API Reference for NextRequest.\",\"path\":\"13/app/api-reference/functions/next-request\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextResponse\",\"description\":\"API Reference for NextResponse.\",\"path\":\"13/app/api-reference/functions/next-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"notFound\",\"description\":\"API Reference for the notFound function.\",\"path\":\"13/app/api-reference/functions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"permanentRedirect\",\"description\":\"API Reference for the permanentRedirect function.\",\"path\":\"13/app/api-reference/functions/permanentRedirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"redirect\",\"description\":\"API Reference for the redirect function.\",\"path\":\"13/app/api-reference/functions/redirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidatePath\",\"description\":\"API Reference for the revalidatePath function.\",\"path\":\"13/app/api-reference/functions/revalidatePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidateTag\",\"description\":\"API Reference for the revalidateTag function.\",\"path\":\"13/app/api-reference/functions/revalidateTag\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Server Actions\",\"description\":\"API Reference for Next.js Server Actions.\",\"path\":\"13/app/api-reference/functions/server-actions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useParams\",\"description\":\"API Reference for the useParams hook.\",\"path\":\"13/app/api-reference/functions/use-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"usePathname\",\"description\":\"API Reference for the usePathname hook.\",\"path\":\"13/app/api-reference/functions/use-pathname\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useReportWebVitals\",\"description\":\"API Reference for the useReportWebVitals function.\",\"path\":\"13/app/api-reference/functions/use-report-web-vitals\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useRouter\",\"description\":\"API reference for the useRouter hook.\",\"path\":\"13/app/api-reference/functions/use-router\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSearchParams\",\"description\":\"API Reference for the useSearchParams hook.\",\"path\":\"13/app/api-reference/functions/use-search-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegment\",\"description\":\"API Reference for the useSelectedLayoutSegment hook.\",\"path\":\"13/app/api-reference/functions/use-selected-layout-segment\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegments\",\"description\":\"API Reference for the useSelectedLayoutSegments hook.\",\"path\":\"13/app/api-reference/functions/use-selected-layout-segments\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"next.config.js Options\",\"description\":\"Learn how to configure your application with next.config.js.\",\"path\":\"13/app/api-reference/next-config-js\",\"version\":\"$undefined\",\"children\":[{\"title\":\"appDir\",\"description\":\"Enable the App Router to use layouts, streaming, and more.\",\"path\":\"13/app/api-reference/next-config-js/appDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"assetPrefix\",\"description\":\"Learn how to use the assetPrefix config option to configure your CDN.\",\"path\":\"13/app/api-reference/next-config-js/assetPrefix\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"basePath\",\"description\":\"Use `basePath` to deploy a Next.js application under a sub-path of a domain.\",\"path\":\"13/app/api-reference/next-config-js/basePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"compress\",\"description\":\"Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here.\",\"path\":\"13/app/api-reference/next-config-js/compress\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"devIndicators\",\"description\":\"Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here.\",\"path\":\"13/app/api-reference/next-config-js/devIndicators\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"distDir\",\"description\":\"Set a custom build directory to use instead of the default .next directory.\",\"path\":\"13/app/api-reference/next-config-js/distDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"env\",\"description\":\"Learn to add and access environment variables in your Next.js application at build time.\",\"path\":\"13/app/api-reference/next-config-js/env\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"eslint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.\",\"path\":\"13/app/api-reference/next-config-js/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"exportPathMap\",\"description\":\"Customize the pages that will be exported as HTML files when using `next export`.\",\"path\":\"13/app/api-reference/next-config-js/exportPathMap\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateBuildId\",\"description\":\"Configure the build id, which is used to identify the current build in which your application is being served.\",\"path\":\"13/app/api-reference/next-config-js/generateBuildId\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateEtags\",\"description\":\"Next.js will generate etags for every page by default. 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Learn more about how to disable HTTP Keep-Alive here.\",\"path\":\"13/app/api-reference/next-config-js/httpAgentOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"images\",\"description\":\"Custom configuration for the next/image loader\",\"path\":\"13/app/api-reference/next-config-js/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"incrementalCacheHandlerPath\",\"description\":\"Configure the Next.js cache used for storing and revalidating data.\",\"path\":\"13/app/api-reference/next-config-js/incrementalCacheHandlerPath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"mdxRs\",\"description\":\"Use the new Rust compiler to compile MDX files in the App Router.\",\"path\":\"13/app/api-reference/next-config-js/mdxRs\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"onDemandEntries\",\"description\":\"Configure how Next.js will dispose and keep in memory pages created in development.\",\"path\":\"13/app/api-reference/next-config-js/onDemandEntries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"optimizePackageImports\",\"description\":\"API Reference for optmizedPackageImports Next.js Config Option\",\"path\":\"13/app/api-reference/next-config-js/optimizePackageImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"output\",\"description\":\"Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here.\",\"path\":\"13/app/api-reference/next-config-js/output\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"pageExtensions\",\"description\":\"Extend the default page extensions used by Next.js when resolving pages in the Pages Router.\",\"path\":\"13/app/api-reference/next-config-js/pageExtensions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"poweredByHeader\",\"description\":\"Next.js will add the `x-powered-by` header by default. 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Learn to opt-out of this behavior here.\",\"path\":\"13/app/api-reference/next-config-js/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"urlImports\",\"description\":\"Configure Next.js to allow importing modules from external URLs (experimental).\",\"path\":\"13/app/api-reference/next-config-js/urlImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webpack\",\"description\":\"Learn how to customize the webpack config used by Next.js\",\"path\":\"13/app/api-reference/next-config-js/webpack\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webVitalsAttribution\",\"description\":\"Learn how to use the webVitalsAttribution option to pinpoint the source of Web Vitals issues.\",\"path\":\"13/app/api-reference/next-config-js/webVitalsAttribution\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"create-next-app\",\"description\":\"Create Next.js apps in one command with create-next-app.\",\"path\":\"13/app/api-reference/create-next-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Edge Runtime\",\"description\":\"API Reference for the Edge Runtime.\",\"path\":\"13/app/api-reference/edge\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Next.js CLI\",\"description\":\"The Next.js CLI allows you to start, build, and export your application. 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Learn how it works here.\",\"path\":\"13/pages/building-your-application/rendering/automatic-static-optimization\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Client-side Rendering (CSR)\",\"description\":\"Learn how to implement client-side rendering in the Pages Router.\",\"path\":\"13/pages/building-your-application/rendering/client-side-rendering\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Edge and Node.js Runtimes\",\"description\":\"Learn more about the switchable runtimes (Edge and Node.js) in Next.js.\",\"path\":\"13/pages/building-your-application/rendering/edge-and-nodejs-runtimes\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Data Fetching\",\"description\":\"Next.js allows you to fetch data in multiple ways, with pre-rendering, server-side rendering or static-site generation, and incremental static regeneration. 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Learn more about this API for data fetching in Next.js.\",\"path\":\"13/pages/building-your-application/data-fetching/get-static-paths\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Forms and Mutations\",\"description\":\"Learn how to handle form submissions and data mutations with Next.js.\",\"path\":\"13/pages/building-your-application/data-fetching/forms-and-mutations\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getServerSideProps\",\"description\":\"Fetch data on each request with `getServerSideProps`.\",\"path\":\"13/pages/building-your-application/data-fetching/get-server-side-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Incremental Static Regeneration\",\"description\":\"Learn how to create or update static pages at runtime with Incremental Static Regeneration.\",\"path\":\"13/pages/building-your-application/data-fetching/incremental-static-regeneration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Client-side Fetching\",\"description\":\"Learn about client-side data fetching, and how to use SWR, a data fetching React hook library that handles caching, revalidation, focus tracking, refetching on interval and more.\",\"path\":\"13/pages/building-your-application/data-fetching/client-side\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Styling\",\"description\":\"Learn the different ways you can style your Next.js application.\",\"path\":\"13/pages/building-your-application/styling\",\"version\":\"$undefined\",\"children\":[{\"title\":\"CSS Modules\",\"description\":\"Style your Next.js Application using CSS Modules.\",\"path\":\"13/pages/building-your-application/styling/css-modules\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Tailwind CSS\",\"description\":\"Style your Next.js Application using Tailwind CSS.\",\"path\":\"13/pages/building-your-application/styling/tailwind-css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"CSS-in-JS\",\"description\":\"Use CSS-in-JS libraries with Next.js\",\"path\":\"13/pages/building-your-application/styling/css-in-js\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Sass\",\"description\":\"Learn how to use Sass in your Next.js application.\",\"path\":\"13/pages/building-your-application/styling/sass\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Optimizing\",\"description\":\"Optimize your Next.js application for best performance and user experience.\",\"path\":\"13/pages/building-your-application/optimizing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Images\",\"description\":\"Optimize your images with the built-in `next/image` component.\",\"path\":\"13/pages/building-your-application/optimizing/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fonts\",\"description\":\"Optimize your application's web fonts with the built-in `next/font` loaders.\",\"path\":\"13/pages/building-your-application/optimizing/fonts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Scripts\",\"description\":\"Optimize 3rd party scripts with the built-in Script component.\",\"path\":\"13/pages/building-your-application/optimizing/scripts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Assets\",\"description\":\"Next.js allows you to serve static files, like images, in the public directory. You can learn how it works here.\",\"path\":\"13/pages/building-your-application/optimizing/static-assets\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Lazy Loading\",\"description\":\"Lazy load imported libraries and React Components to improve your application's loading performance.\",\"path\":\"13/pages/building-your-application/optimizing/lazy-loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Analytics\",\"description\":\"Measure and track page performance using Next.js Speed Insights\",\"path\":\"13/pages/building-your-application/optimizing/analytics\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"OpenTelemetry\",\"description\":\"Learn how to instrument your Next.js app with OpenTelemetry.\",\"path\":\"13/pages/building-your-application/optimizing/open-telemetry\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Instrumentation\",\"description\":\"Learn how to use instrumentation to run code at server startup in your Next.js app\",\"path\":\"13/pages/building-your-application/optimizing/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Testing\",\"description\":\"Learn how to set up Next.js with three commonly used testing tools — Cypress, Playwright, Jest, and React Testing Library.\",\"path\":\"13/pages/building-your-application/optimizing/testing\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuring\",\"description\":\"Learn how to configure your Next.js application.\",\"path\":\"13/pages/building-your-application/configuring\",\"version\":\"$undefined\",\"children\":[{\"title\":\"TypeScript\",\"description\":\"Next.js provides a TypeScript-first development experience for building your React application.\",\"path\":\"13/pages/building-your-application/configuring/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ESLint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. 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You can learn how it works with Pages Router.\",\"path\":\"13/pages/building-your-application/configuring/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Error Handling\",\"description\":\"Handle errors in your Next.js app.\",\"path\":\"13/pages/building-your-application/configuring/error-handling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Debugging\",\"description\":\"Learn how to debug your Next.js application with VS Code or Chrome DevTools.\",\"path\":\"13/pages/building-your-application/configuring/debugging\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Preview Mode\",\"description\":\"Next.js has the preview mode for statically generated pages. You can learn how it works here.\",\"path\":\"13/pages/building-your-application/configuring/preview-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Content Security Policy\",\"description\":\"Learn how to set a Content Security Policy (CSP) for your Next.js application.\",\"path\":\"13/pages/building-your-application/configuring/content-security-policy\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Deploying\",\"description\":\"Learn how to deploy your Next.js app to production, either managed or self-hosted.\",\"path\":\"13/pages/building-your-application/deploying\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Going to Production\",\"description\":\"Before taking your Next.js application to production, here are some recommendations to ensure the best user experience.\",\"path\":\"13/pages/building-your-application/deploying/production-checklist\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Exports\",\"description\":\"Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server.\",\"path\":\"13/pages/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Multi Zones\",\"description\":\"Learn how to use multi zones to deploy multiple Next.js apps as a single app.\",\"path\":\"13/pages/building-your-application/deploying/multi-zones\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Continuous Integration (CI) Build Caching\",\"description\":\"Learn how to configure CI to cache Next.js builds\",\"path\":\"13/pages/building-your-application/deploying/ci-build-caching\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"13/pages/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"13/pages/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"From Pages to App\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"13/pages/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 13\",\"description\":\"Upgrade your Next.js Application from Version 12 to 13.\",\"path\":\"13/pages/building-your-application/upgrading/version-13\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 12\",\"description\":\"Upgrade your Next.js Application from Version 11 to Version 12.\",\"path\":\"13/pages/building-your-application/upgrading/version-12\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 11\",\"description\":\"Upgrade your Next.js Application from Version 10 to Version 11.\",\"path\":\"13/pages/building-your-application/upgrading/version-11\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 10\",\"description\":\"Upgrade your Next.js Application from Version 9 to Version 10.\",\"path\":\"13/pages/building-your-application/upgrading/version-10\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 9\",\"description\":\"Upgrade your Next.js Application from Version 8 to Version 9.\",\"path\":\"13/pages/building-your-application/upgrading/version-9\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the Pages Router.\",\"path\":\"13/pages/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components in the Pages Router.\",\"path\":\"13/pages/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"API Reference for the Font Module\",\"path\":\"13/pages/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cHead\u003e\",\"description\":\"Add custom elements to the `head` of your page with the built-in Head component.\",\"path\":\"13/pages/api-reference/components/head\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"13/pages/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e (Legacy)\",\"description\":\"Backwards compatible Image Optimization with the Legacy Image component.\",\"path\":\"13/pages/api-reference/components/image-legacy\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"API reference for the \u003cLink\u003e component.\",\"path\":\"13/pages/api-reference/components/link\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cScript\u003e\",\"description\":\"Optimize third-party scripts in your Next.js application using the built-in `next/script` Component.\",\"path\":\"13/pages/api-reference/components/script\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Functions and Hooks in Pages Router.\",\"path\":\"13/pages/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"getInitialProps\",\"description\":\"Fetch dynamic data on the server for your React component with getInitialProps.\",\"path\":\"13/pages/api-reference/functions/get-initial-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getServerSideProps\",\"description\":\"API reference for `getServerSideProps`. Learn how to fetch data on each request with Next.js.\",\"path\":\"13/pages/api-reference/functions/get-server-side-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getStaticPaths\",\"description\":\"API reference for `getStaticPaths`. Learn how to fetch data and generate static pages with `getStaticPaths`.\",\"path\":\"13/pages/api-reference/functions/get-static-paths\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getStaticProps\",\"description\":\"API reference for `getStaticProps`. Learn how to use `getStaticProps` to generate static pages with Next.js.\",\"path\":\"13/pages/api-reference/functions/get-static-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextRequest and NextResponse\",\"description\":\"Learn about the server-only helpers for Middleware and Edge API Routes.\",\"path\":\"13/pages/api-reference/functions/next-server\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useAmp\",\"description\":\"Enable AMP in a page, and control the way Next.js adds AMP to the page with the AMP config.\",\"path\":\"13/pages/api-reference/functions/use-amp\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useReportWebVitals\",\"description\":\"useReportWebVitals\",\"path\":\"13/pages/api-reference/functions/use-report-web-vitals\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useRouter\",\"description\":\"Learn more about the API of the Next.js Router, and access the router instance in your page with the useRouter hook.\",\"path\":\"13/pages/api-reference/functions/use-router\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"next.config.js Options\",\"description\":\"Learn about the options available in next.config.js for the Pages Router.\",\"path\":\"13/pages/api-reference/next-config-js\",\"version\":\"$undefined\",\"children\":[{\"title\":\"assetPrefix\",\"description\":\"Learn how to use the assetPrefix config option to configure your CDN.\",\"path\":\"13/pages/api-reference/next-config-js/assetPrefix\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"basePath\",\"description\":\"Use `basePath` to deploy a Next.js application under a sub-path of a domain.\",\"path\":\"13/pages/api-reference/next-config-js/basePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"compress\",\"description\":\"Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here.\",\"path\":\"13/pages/api-reference/next-config-js/compress\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"devIndicators\",\"description\":\"Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here.\",\"path\":\"13/pages/api-reference/next-config-js/devIndicators\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"distDir\",\"description\":\"Set a custom build directory to use instead of the default .next directory.\",\"path\":\"13/pages/api-reference/next-config-js/distDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"env\",\"description\":\"Learn to add and access environment variables in your Next.js application at build time.\",\"path\":\"13/pages/api-reference/next-config-js/env\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"eslint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.\",\"path\":\"13/pages/api-reference/next-config-js/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"exportPathMap\",\"description\":\"Customize the pages that will be exported as HTML files when using `next export`.\",\"path\":\"13/pages/api-reference/next-config-js/exportPathMap\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateBuildId\",\"description\":\"Configure the build id, which is used to identify the current build in which your application is being served.\",\"path\":\"13/pages/api-reference/next-config-js/generateBuildId\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateEtags\",\"description\":\"Next.js will generate etags for every page by default. Learn more about how to disable etag generation here.\",\"path\":\"13/pages/api-reference/next-config-js/generateEtags\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"Add custom HTTP headers to your Next.js app.\",\"path\":\"13/pages/api-reference/next-config-js/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"httpAgentOptions\",\"description\":\"Next.js will automatically use HTTP Keep-Alive by default. Learn more about how to disable HTTP Keep-Alive here.\",\"path\":\"13/pages/api-reference/next-config-js/httpAgentOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"images\",\"description\":\"Custom configuration for the next/image loader\",\"path\":\"13/pages/api-reference/next-config-js/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"onDemandEntries\",\"description\":\"Configure how Next.js will dispose and keep in memory pages created in development.\",\"path\":\"13/pages/api-reference/next-config-js/onDemandEntries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"output\",\"description\":\"Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here.\",\"path\":\"13/pages/api-reference/next-config-js/output\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"pageExtensions\",\"description\":\"Extend the default page extensions used by Next.js when resolving pages in the Pages Router.\",\"path\":\"13/pages/api-reference/next-config-js/pageExtensions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"poweredByHeader\",\"description\":\"Next.js will add the `x-powered-by` header by default. 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Learn to opt-out of this behavior here.\",\"path\":\"13/pages/api-reference/next-config-js/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"urlImports\",\"description\":\"Configure Next.js to allow importing modules from external URLs (experimental).\",\"path\":\"13/pages/api-reference/next-config-js/urlImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webpack\",\"description\":\"Learn how to customize the webpack config used by Next.js\",\"path\":\"13/pages/api-reference/next-config-js/webpack\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webVitalsAttribution\",\"description\":\"Learn how to use the webVitalsAttribution option to pinpoint the source of Web Vitals issues.\",\"path\":\"13/pages/api-reference/next-config-js/webVitalsAttribution\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"create-next-app\",\"description\":\"create-next-app\",\"path\":\"13/pages/api-reference/create-next-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Next.js CLI\",\"description\":\"Next.js CLI\",\"path\":\"13/pages/api-reference/next-cli\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Edge Runtime\",\"description\":\"API Reference for the Edge Runtime.\",\"path\":\"13/pages/api-reference/edge\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Architecture\",\"description\":\"How Next.js Works\",\"path\":\"13/architecture\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Accessibility\",\"description\":\"The built-in accessibility features of Next.js.\",\"path\":\"13/architecture/accessibility\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fast Refresh\",\"description\":\"Fast Refresh is a hot module reloading experience that gives you instantaneous feedback on edits made to your React components.\",\"path\":\"13/architecture/fast-refresh\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Next.js Compiler\",\"description\":\"Next.js Compiler, written in Rust, which transforms and minifies your Next.js application.\",\"path\":\"13/architecture/nextjs-compiler\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Supported Browsers\",\"description\":\"Browser support and which JavaScript features are supported by Next.js.\",\"path\":\"13/architecture/supported-browsers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Turbopack\",\"description\":\"Turbopack is an incremental bundler optimized for JavaScript and TypeScript, written in Rust, and built into Next.js.\",\"path\":\"13/architecture/turbopack\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Community\",\"description\":\"Get involved in the Next.js community.\",\"path\":\"13/community\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Contribution Guide\",\"description\":\"Learn how to contribute to Next.js Documentation\",\"path\":\"13/community/contribution-guide\",\"version\":\"$undefined\",\"children\":[]}]}],\"14\":[{\"title\":\"Getting Started\",\"description\":\"Learn how to create full-stack web applications with Next.js.\",\"path\":\"14/getting-started\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Installation\",\"description\":\"Create a new Next.js application with `create-next-app`. Set up TypeScript, styles, and configure your `next.config.js` file.\",\"path\":\"14/getting-started/installation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Project Structure\",\"description\":\"A list of folders and files conventions in a Next.js project\",\"path\":\"14/getting-started/project-structure\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Building Your Application\",\"description\":\"Learn how to use Next.js features to build your application.\",\"path\":\"14/app/building-your-application\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Routing\",\"description\":\"Learn the fundamentals of routing for front-end applications.\",\"path\":\"14/app/building-your-application/routing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Defining Routes\",\"description\":\"Learn how to create your first route in Next.js.\",\"path\":\"14/app/building-your-application/routing/defining-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Pages and Layouts\",\"description\":\"Create your first page and shared layout with the App Router.\",\"path\":\"14/app/building-your-application/routing/pages-and-layouts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Linking and Navigating\",\"description\":\"Learn how navigation works in Next.js, and how to use the Link Component and `useRouter` hook.\",\"path\":\"14/app/building-your-application/routing/linking-and-navigating\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Loading UI and Streaming\",\"description\":\"Built on top of Suspense, Loading UI allows you to create a fallback for specific route segments, and automatically stream content as it becomes ready.\",\"path\":\"14/app/building-your-application/routing/loading-ui-and-streaming\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Error Handling\",\"description\":\"Handle runtime errors by automatically wrapping route segments and their nested children in a React Error Boundary.\",\"path\":\"14/app/building-your-application/routing/error-handling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Redirecting\",\"description\":\"Learn the different ways to handle redirects in Next.js.\",\"path\":\"14/app/building-your-application/routing/redirecting\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Groups\",\"description\":\"Route Groups can be used to partition your Next.js application into different sections.\",\"path\":\"14/app/building-your-application/routing/route-groups\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Project Organization\",\"description\":\"Learn how to organize your Next.js project and colocate files.\",\"path\":\"14/app/building-your-application/routing/colocation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Dynamic Routes\",\"description\":\"Dynamic Routes can be used to programmatically generate route segments from dynamic data.\",\"path\":\"14/app/building-your-application/routing/dynamic-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Parallel Routes\",\"description\":\"Simultaneously render one or more pages in the same view that can be navigated independently. 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completed.\",\"path\":\"14/app/building-your-application/routing/middleware\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Internationalization\",\"description\":\"Add support for multiple languages with internationalized routing and localized content.\",\"path\":\"14/app/building-your-application/routing/internationalization\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Data Fetching\",\"description\":\"Learn how to fetch, cache, revalidate, and mutate data with Next.js.\",\"path\":\"14/app/building-your-application/data-fetching\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Fetching, Caching, and Revalidating\",\"description\":\"Learn how to fetch, cache, and revalidate data in your Next.js application.\",\"path\":\"14/app/building-your-application/data-fetching/fetching-caching-and-revalidating\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Server Actions and Mutations\",\"description\":\"Learn how to handle form submissions and data mutations with Next.js.\",\"path\":\"14/app/building-your-application/data-fetching/server-actions-and-mutations\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Data Fetching Patterns and Best Practices\",\"description\":\"Learn about common data fetching patterns in React and Next.js.\",\"path\":\"14/app/building-your-application/data-fetching/patterns\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Rendering\",\"description\":\"Learn the differences between Next.js rendering environments, strategies, and runtimes.\",\"path\":\"14/app/building-your-application/rendering\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Server Components\",\"description\":\"Learn how you can use React Server Components to render parts of your application on the server.\",\"path\":\"14/app/building-your-application/rendering/server-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Client Components\",\"description\":\"Learn how to use Client Components to render parts of your application on the client.\",\"path\":\"14/app/building-your-application/rendering/client-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Composition Patterns\",\"description\":\"Recommended patterns for using Server and Client Components.\",\"path\":\"14/app/building-your-application/rendering/composition-patterns\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Edge and Node.js Runtimes\",\"description\":\"Learn about the switchable runtimes (Edge and Node.js) in Next.js.\",\"path\":\"14/app/building-your-application/rendering/edge-and-nodejs-runtimes\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Caching\",\"description\":\"An overview of caching mechanisms in Next.js.\",\"path\":\"14/app/building-your-application/caching\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Styling\",\"description\":\"Learn the different ways you can style your Next.js application.\",\"path\":\"14/app/building-your-application/styling\",\"version\":\"$undefined\",\"children\":[{\"title\":\"CSS Modules\",\"description\":\"Style your Next.js Application with CSS Modules, Global Styles, and external stylesheets.\",\"path\":\"14/app/building-your-application/styling/css-modules\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Tailwind CSS\",\"description\":\"Style your Next.js Application using Tailwind CSS.\",\"path\":\"14/app/building-your-application/styling/tailwind-css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"CSS-in-JS\",\"description\":\"Use CSS-in-JS libraries with Next.js\",\"path\":\"14/app/building-your-application/styling/css-in-js\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Sass\",\"description\":\"Style your Next.js application using Sass.\",\"path\":\"14/app/building-your-application/styling/sass\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Optimizing\",\"description\":\"Optimize your Next.js application for best performance and user experience.\",\"path\":\"14/app/building-your-application/optimizing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Images\",\"description\":\"Optimize your images with the built-in `next/image` component.\",\"path\":\"14/app/building-your-application/optimizing/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Videos\",\"description\":\"Recommendations and best practices for optimizing videos in your Next.js application.\",\"path\":\"14/app/building-your-application/optimizing/videos\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fonts\",\"description\":\"Optimize your application's web fonts with the built-in `next/font` loaders.\",\"path\":\"14/app/building-your-application/optimizing/fonts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Metadata\",\"description\":\"Use the Metadata API to define metadata in any layout or page.\",\"path\":\"14/app/building-your-application/optimizing/metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Scripts\",\"description\":\"Optimize 3rd party scripts with the built-in Script component.\",\"path\":\"14/app/building-your-application/optimizing/scripts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Bundle Analyzer\",\"description\":\"Analyze the size of your JavaScript bundles using the @next/bundle-analyzer plugin.\",\"path\":\"14/app/building-your-application/optimizing/bundle-analyzer\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Lazy Loading\",\"description\":\"Lazy load imported libraries and React Components to improve your application's loading performance.\",\"path\":\"14/app/building-your-application/optimizing/lazy-loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Analytics\",\"description\":\"Measure and track page performance using Next.js Speed Insights\",\"path\":\"14/app/building-your-application/optimizing/analytics\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Instrumentation\",\"description\":\"Learn how to use instrumentation to run code at server startup in your Next.js app\",\"path\":\"14/app/building-your-application/optimizing/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"OpenTelemetry\",\"description\":\"Learn how to instrument your Next.js app with OpenTelemetry.\",\"path\":\"14/app/building-your-application/optimizing/open-telemetry\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Assets\",\"description\":\"Next.js allows you to serve static files, like images, in the public directory. You can learn how it works here.\",\"path\":\"14/app/building-your-application/optimizing/static-assets\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Third Party Libraries\",\"description\":\"Optimize the performance of third-party libraries in your application with the `@next/third-parties` package.\",\"path\":\"14/app/building-your-application/optimizing/third-party-libraries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Memory Usage\",\"description\":\"Optimize memory used by your application in development and production.\",\"path\":\"14/app/building-your-application/optimizing/memory-usage\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuring\",\"description\":\"Learn how to configure your Next.js application.\",\"path\":\"14/app/building-your-application/configuring\",\"version\":\"$undefined\",\"children\":[{\"title\":\"TypeScript\",\"description\":\"Next.js provides a TypeScript-first development experience for building your React application.\",\"path\":\"14/app/building-your-application/configuring/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ESLint\",\"description\":\"Next.js provides an integrated ESLint experience by default. These conformance rules help you use Next.js in an optimal way.\",\"path\":\"14/app/building-your-application/configuring/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Environment Variables\",\"description\":\"Learn to add and access environment variables in your Next.js application.\",\"path\":\"14/app/building-your-application/configuring/environment-variables\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Absolute Imports and Module Path Aliases\",\"description\":\"Configure module path aliases that allow you to remap certain import paths.\",\"path\":\"14/app/building-your-application/configuring/absolute-imports-and-module-aliases\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"MDX\",\"description\":\"Learn how to configure MDX and use it in your Next.js apps.\",\"path\":\"14/app/building-your-application/configuring/mdx\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"src Directory\",\"description\":\"Save pages under the `src` directory as an alternative to the root `pages` directory.\",\"path\":\"14/app/building-your-application/configuring/src-directory\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Draft Mode\",\"description\":\"Next.js has draft mode to toggle between static and dynamic pages. You can learn how it works with App Router here.\",\"path\":\"14/app/building-your-application/configuring/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Content Security Policy\",\"description\":\"Learn how to set a Content Security Policy (CSP) for your Next.js application.\",\"path\":\"14/app/building-your-application/configuring/content-security-policy\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Testing\",\"description\":\"Learn how to set up Next.js with four commonly used testing tools — Cypress, Playwright, Vitest, and Jest.\",\"path\":\"14/app/building-your-application/testing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Vitest\",\"description\":\"Learn how to set up Vitest with Next.js for Unit Testing.\",\"path\":\"14/app/building-your-application/testing/vitest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Jest\",\"description\":\"Learn how to set up Jest with Next.js for Unit Testing and Snapshot Testing.\",\"path\":\"14/app/building-your-application/testing/jest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Playwright\",\"description\":\"Learn how to set up Playwright with Next.js for End-to-End (E2E) testing.\",\"path\":\"14/app/building-your-application/testing/playwright\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Cypress\",\"description\":\"Learn how to set up Cypress with Next.js for End-to-End (E2E) and Component Testing.\",\"path\":\"14/app/building-your-application/testing/cypress\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Authentication\",\"description\":\"Learn how to implement authentication in Next.js, covering best practices, securing routes, authorization techniques, and session management.\",\"path\":\"14/app/building-your-application/authentication\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Deploying\",\"description\":\"Learn how to deploy your Next.js app to production, either managed or self-hosted.\",\"path\":\"14/app/building-your-application/deploying\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Production Checklist\",\"description\":\"Recommendations to ensure the best performance and user experience before taking your Next.js application to production.\",\"path\":\"14/app/building-your-application/deploying/production-checklist\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Exports\",\"description\":\"Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server.\",\"path\":\"14/app/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Multi-Zones\",\"description\":\"Learn how to build micro-frontends using Next.js Multi-Zones to deploy multiple Next.js apps under a single domain.\",\"path\":\"14/app/building-your-application/deploying/multi-zones\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"14/app/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"14/app/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"App Router Migration\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"14/app/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 14\",\"description\":\"Upgrade your Next.js Application from Version 13 to 14.\",\"path\":\"14/app/building-your-application/upgrading/version-14\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Vite\",\"description\":\"Learn how to migrate your existing React application from Vite to Next.js.\",\"path\":\"14/app/building-your-application/upgrading/from-vite\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Create React App\",\"description\":\"Learn how to migrate your existing React application from Create React App to Next.js.\",\"path\":\"14/app/building-your-application/upgrading/from-create-react-app\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the App Router.\",\"path\":\"14/app/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components.\",\"path\":\"14/app/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"Optimizing loading web fonts with the built-in `next/font` loaders.\",\"path\":\"14/app/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"14/app/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"Enable fast client-side navigation with the built-in `next/link` component.\",\"path\":\"14/app/api-reference/components/link\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cScript\u003e\",\"description\":\"Optimize third-party scripts in your Next.js application using the built-in `next/script` Component.\",\"path\":\"14/app/api-reference/components/script\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"File Conventions\",\"description\":\"API Reference for Next.js Special Files.\",\"path\":\"14/app/api-reference/file-conventions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"default.js\",\"description\":\"API Reference for the default.js file.\",\"path\":\"14/app/api-reference/file-conventions/default\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"error.js\",\"description\":\"API reference for the error.js special file.\",\"path\":\"14/app/api-reference/file-conventions/error\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"instrumentation.js\",\"description\":\"API reference for the instrumentation.js file.\",\"path\":\"14/app/api-reference/file-conventions/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"layout.js\",\"description\":\"API reference for the layout.js file.\",\"path\":\"14/app/api-reference/file-conventions/layout\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"loading.js\",\"description\":\"API reference for the loading.js file.\",\"path\":\"14/app/api-reference/file-conventions/loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"middleware.js\",\"description\":\"API reference for the middleware.js file.\",\"path\":\"14/app/api-reference/file-conventions/middleware\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"not-found.js\",\"description\":\"API reference for the not-found.js file.\",\"path\":\"14/app/api-reference/file-conventions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"page.js\",\"description\":\"API reference for the page.js file.\",\"path\":\"14/app/api-reference/file-conventions/page\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"route.js\",\"description\":\"API reference for the route.js special file.\",\"path\":\"14/app/api-reference/file-conventions/route\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Segment Config\",\"description\":\"Learn about how to configure options for Next.js route segments.\",\"path\":\"14/app/api-reference/file-conventions/route-segment-config\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"template.js\",\"description\":\"API Reference for the template.js file.\",\"path\":\"14/app/api-reference/file-conventions/template\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Metadata Files\",\"description\":\"API documentation for the metadata file conventions.\",\"path\":\"14/app/api-reference/file-conventions/metadata\",\"version\":\"$undefined\",\"children\":[{\"title\":\"favicon, icon, and apple-icon\",\"description\":\"API Reference for the Favicon, Icon and Apple Icon file conventions.\",\"path\":\"14/app/api-reference/file-conventions/metadata/app-icons\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"manifest.json\",\"description\":\"API Reference for manifest.json file.\",\"path\":\"14/app/api-reference/file-conventions/metadata/manifest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"opengraph-image and twitter-image\",\"description\":\"API Reference for the Open Graph Image and Twitter Image file conventions.\",\"path\":\"14/app/api-reference/file-conventions/metadata/opengraph-image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"robots.txt\",\"description\":\"API Reference for robots.txt file.\",\"path\":\"14/app/api-reference/file-conventions/metadata/robots\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"sitemap.xml\",\"description\":\"API Reference for the sitemap.xml file.\",\"path\":\"14/app/api-reference/file-conventions/metadata/sitemap\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Next.js Functions and Hooks.\",\"path\":\"14/app/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"cookies\",\"description\":\"API Reference for the cookies function.\",\"path\":\"14/app/api-reference/functions/cookies\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"draftMode\",\"description\":\"API Reference for the draftMode function.\",\"path\":\"14/app/api-reference/functions/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"fetch\",\"description\":\"API reference for the extended fetch function.\",\"path\":\"14/app/api-reference/functions/fetch\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateImageMetadata\",\"description\":\"Learn how to generate multiple images in a single Metadata API special file.\",\"path\":\"14/app/api-reference/functions/generate-image-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateMetadata\",\"description\":\"Learn how to add Metadata to your Next.js application for improved search engine optimization (SEO) and web shareability.\",\"path\":\"14/app/api-reference/functions/generate-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateSitemaps\",\"description\":\"Learn how to use the generateSiteMaps function to create multiple sitemaps for your application.\",\"path\":\"14/app/api-reference/functions/generate-sitemaps\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateStaticParams\",\"description\":\"API reference for the generateStaticParams function.\",\"path\":\"14/app/api-reference/functions/generate-static-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateViewport\",\"description\":\"API Reference for the generateViewport function.\",\"path\":\"14/app/api-reference/functions/generate-viewport\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"API reference for the headers function.\",\"path\":\"14/app/api-reference/functions/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ImageResponse\",\"description\":\"API Reference for the ImageResponse constructor.\",\"path\":\"14/app/api-reference/functions/image-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextRequest\",\"description\":\"API Reference for NextRequest.\",\"path\":\"14/app/api-reference/functions/next-request\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextResponse\",\"description\":\"API Reference for NextResponse.\",\"path\":\"14/app/api-reference/functions/next-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"notFound\",\"description\":\"API Reference for the notFound function.\",\"path\":\"14/app/api-reference/functions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"permanentRedirect\",\"description\":\"API Reference for the permanentRedirect function.\",\"path\":\"14/app/api-reference/functions/permanentRedirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"redirect\",\"description\":\"API Reference for the redirect function.\",\"path\":\"14/app/api-reference/functions/redirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidatePath\",\"description\":\"API Reference for the revalidatePath function.\",\"path\":\"14/app/api-reference/functions/revalidatePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidateTag\",\"description\":\"API Reference for the revalidateTag function.\",\"path\":\"14/app/api-reference/functions/revalidateTag\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"unstable_cache\",\"description\":\"API Reference for the unstable_cache function.\",\"path\":\"14/app/api-reference/functions/unstable_cache\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"unstable_noStore\",\"description\":\"API Reference for the unstable_noStore function.\",\"path\":\"14/app/api-reference/functions/unstable_noStore\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useParams\",\"description\":\"API Reference for the useParams hook.\",\"path\":\"14/app/api-reference/functions/use-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"usePathname\",\"description\":\"API Reference for the usePathname hook.\",\"path\":\"14/app/api-reference/functions/use-pathname\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useReportWebVitals\",\"description\":\"API Reference for the useReportWebVitals function.\",\"path\":\"14/app/api-reference/functions/use-report-web-vitals\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useRouter\",\"description\":\"API reference for the useRouter hook.\",\"path\":\"14/app/api-reference/functions/use-router\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSearchParams\",\"description\":\"API Reference for the useSearchParams hook.\",\"path\":\"14/app/api-reference/functions/use-search-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegment\",\"description\":\"API Reference for the useSelectedLayoutSegment hook.\",\"path\":\"14/app/api-reference/functions/use-selected-layout-segment\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegments\",\"description\":\"API Reference for the useSelectedLayoutSegments hook.\",\"path\":\"14/app/api-reference/functions/use-selected-layout-segments\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"userAgent\",\"description\":\"The userAgent helper extends the Web Request API with additional properties and methods to interact with the user agent object from the request.\",\"path\":\"14/app/api-reference/functions/userAgent\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"next.config.js Options\",\"description\":\"Learn how to configure your application with next.config.js.\",\"path\":\"14/app/api-reference/next-config-js\",\"version\":\"$undefined\",\"children\":[{\"title\":\"appDir\",\"description\":\"Enable the App Router to use layouts, streaming, and more.\",\"path\":\"14/app/api-reference/next-config-js/appDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"assetPrefix\",\"description\":\"Learn how to use the assetPrefix config option to configure your CDN.\",\"path\":\"14/app/api-reference/next-config-js/assetPrefix\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"basePath\",\"description\":\"Use `basePath` to deploy a Next.js application under a sub-path of a domain.\",\"path\":\"14/app/api-reference/next-config-js/basePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"compress\",\"description\":\"Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here.\",\"path\":\"14/app/api-reference/next-config-js/compress\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"crossOrigin\",\"description\":\"Use the `crossOrigin` option to add a crossOrigin tag on the `script` tags generated by `next/script`.\",\"path\":\"14/app/api-reference/next-config-js/crossOrigin\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"devIndicators\",\"description\":\"Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here.\",\"path\":\"14/app/api-reference/next-config-js/devIndicators\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"distDir\",\"description\":\"Set a custom build directory to use instead of the default .next directory.\",\"path\":\"14/app/api-reference/next-config-js/distDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"env\",\"description\":\"Learn to add and access environment variables in your Next.js application at build time.\",\"path\":\"14/app/api-reference/next-config-js/env\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"eslint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.\",\"path\":\"14/app/api-reference/next-config-js/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"exportPathMap\",\"description\":\"Customize the pages that will be exported as HTML files when using `next export`.\",\"path\":\"14/app/api-reference/next-config-js/exportPathMap\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateBuildId\",\"description\":\"Configure the build id, which is used to identify the current build in which your application is being served.\",\"path\":\"14/app/api-reference/next-config-js/generateBuildId\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateEtags\",\"description\":\"Next.js will generate etags for every page by default. Learn more about how to disable etag generation here.\",\"path\":\"14/app/api-reference/next-config-js/generateEtags\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"Add custom HTTP headers to your Next.js app.\",\"path\":\"14/app/api-reference/next-config-js/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"httpAgentOptions\",\"description\":\"Next.js will automatically use HTTP Keep-Alive by default. Learn more about how to disable HTTP Keep-Alive here.\",\"path\":\"14/app/api-reference/next-config-js/httpAgentOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"images\",\"description\":\"Custom configuration for the next/image loader\",\"path\":\"14/app/api-reference/next-config-js/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cacheHandler\",\"description\":\"Configure the Next.js cache used for storing and revalidating data to use any external service like Redis, Memcached, or others.\",\"path\":\"14/app/api-reference/next-config-js/incrementalCacheHandlerPath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"instrumentationHook\",\"description\":\"Use the instrumentationHook option to set up instrumentation in your Next.js App.\",\"path\":\"14/app/api-reference/next-config-js/instrumentationHook\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"logging\",\"description\":\"Configure how data fetches are logged to the console when running Next.js in development mode.\",\"path\":\"14/app/api-reference/next-config-js/logging\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"mdxRs\",\"description\":\"Use the new Rust compiler to compile MDX files in the App Router.\",\"path\":\"14/app/api-reference/next-config-js/mdxRs\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"onDemandEntries\",\"description\":\"Configure how Next.js will dispose and keep in memory pages created in development.\",\"path\":\"14/app/api-reference/next-config-js/onDemandEntries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"optimizePackageImports\",\"description\":\"API Reference for optmizedPackageImports Next.js Config Option\",\"path\":\"14/app/api-reference/next-config-js/optimizePackageImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"output\",\"description\":\"Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here.\",\"path\":\"14/app/api-reference/next-config-js/output\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"pageExtensions\",\"description\":\"Extend the default page extensions used by Next.js when resolving pages in the Pages Router.\",\"path\":\"14/app/api-reference/next-config-js/pageExtensions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Partial Prerendering (experimental)\",\"description\":\"Learn how to enable Partial Prerendering (experimental) in Next.js 14.\",\"path\":\"14/app/api-reference/next-config-js/partial-prerendering\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"poweredByHeader\",\"description\":\"Next.js will add the `x-powered-by` header by default. Learn to opt-out of it here.\",\"path\":\"14/app/api-reference/next-config-js/poweredByHeader\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"productionBrowserSourceMaps\",\"description\":\"Enables browser source map generation during the production build.\",\"path\":\"14/app/api-reference/next-config-js/productionBrowserSourceMaps\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"reactStrictMode\",\"description\":\"The complete Next.js runtime is now Strict Mode-compliant, learn how to opt-in\",\"path\":\"14/app/api-reference/next-config-js/reactStrictMode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"redirects\",\"description\":\"Add redirects to your Next.js app.\",\"path\":\"14/app/api-reference/next-config-js/redirects\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"rewrites\",\"description\":\"Add rewrites to your Next.js app.\",\"path\":\"14/app/api-reference/next-config-js/rewrites\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"serverActions\",\"description\":\"Configure Server Actions behavior in your Next.js application.\",\"path\":\"14/app/api-reference/next-config-js/serverActions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"serverComponentsExternalPackages\",\"description\":\"Opt-out specific dependencies from the Server Components bundling and use native Node.js `require`.\",\"path\":\"14/app/api-reference/next-config-js/serverComponentsExternalPackages\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"StaleTimes (experimental)\",\"description\":\"Learn how to override the invalidation time of the Client Router Cache.\",\"path\":\"14/app/api-reference/next-config-js/staleTimes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"trailingSlash\",\"description\":\"Configure Next.js pages to resolve with or without a trailing slash.\",\"path\":\"14/app/api-reference/next-config-js/trailingSlash\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"transpilePackages\",\"description\":\"Automatically transpile and bundle dependencies from local packages (like monorepos) or from external dependencies (`node_modules`).\",\"path\":\"14/app/api-reference/next-config-js/transpilePackages\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"turbo\",\"description\":\"Configure Next.js with Turbopack-specific options\",\"path\":\"14/app/api-reference/next-config-js/turbo\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"typedRoutes\",\"description\":\"Enable experimental support for statically typed links.\",\"path\":\"14/app/api-reference/next-config-js/typedRoutes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"typescript\",\"description\":\"Next.js reports TypeScript errors by default. Learn to opt-out of this behavior here.\",\"path\":\"14/app/api-reference/next-config-js/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"urlImports\",\"description\":\"Configure Next.js to allow importing modules from external URLs (experimental).\",\"path\":\"14/app/api-reference/next-config-js/urlImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webpack\",\"description\":\"Learn how to customize the webpack config used by Next.js\",\"path\":\"14/app/api-reference/next-config-js/webpack\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webVitalsAttribution\",\"description\":\"Learn how to use the webVitalsAttribution option to pinpoint the source of Web Vitals issues.\",\"path\":\"14/app/api-reference/next-config-js/webVitalsAttribution\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"CLI\",\"description\":\"API Reference for the Next.js Command Line Interface (CLI) tools.\",\"path\":\"14/app/api-reference/cli\",\"version\":\"$undefined\",\"children\":[{\"title\":\"create-next-app\",\"description\":\"Create Next.js apps using one command with the create-next-app CLI.\",\"path\":\"14/app/api-reference/cli/create-next-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"next CLI\",\"description\":\"Learn how to run and build your application with the Next.js CLI.\",\"path\":\"14/app/api-reference/cli/next\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Edge Runtime\",\"description\":\"API Reference for the Edge Runtime.\",\"path\":\"14/app/api-reference/edge\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Building Your Application\",\"description\":\"Learn how to use Next.js features to build your application.\",\"path\":\"14/pages/building-your-application\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Routing\",\"description\":\"Learn the fundamentals of routing for front-end applications with the Pages Router.\",\"path\":\"14/pages/building-your-application/routing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Pages and Layouts\",\"description\":\"Create your first page and shared layout with the Pages Router.\",\"path\":\"14/pages/building-your-application/routing/pages-and-layouts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Dynamic Routes\",\"description\":\"Dynamic Routes are pages that allow you to add custom params to your URLs. 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You can learn how it works here.\",\"path\":\"14/pages/building-your-application/optimizing/static-assets\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Bundle Analyzer\",\"description\":\"Analyze the size of your JavaScript bundles using the @next/bundle-analyzer plugin.\",\"path\":\"14/pages/building-your-application/optimizing/bundle-analyzer\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Analytics\",\"description\":\"Measure and track page performance using Next.js Speed Insights\",\"path\":\"14/pages/building-your-application/optimizing/analytics\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Lazy Loading\",\"description\":\"Lazy load imported libraries and React Components to improve your application's loading performance.\",\"path\":\"14/pages/building-your-application/optimizing/lazy-loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Instrumentation\",\"description\":\"Learn how to use instrumentation to run code at server startup in your Next.js app\",\"path\":\"14/pages/building-your-application/optimizing/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"OpenTelemetry\",\"description\":\"Learn how to instrument your Next.js app with OpenTelemetry.\",\"path\":\"14/pages/building-your-application/optimizing/open-telemetry\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Third Party Libraries\",\"description\":\"Optimize the performance of third-party libraries in your application with the `@next/third-parties` package.\",\"path\":\"14/pages/building-your-application/optimizing/third-party-libraries\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuring\",\"description\":\"Learn how to configure your Next.js application.\",\"path\":\"14/pages/building-your-application/configuring\",\"version\":\"$undefined\",\"children\":[{\"title\":\"TypeScript\",\"description\":\"Next.js provides a TypeScript-first development experience for building your React application.\",\"path\":\"14/pages/building-your-application/configuring/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ESLint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. 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You can learn how it works with Pages Router.\",\"path\":\"14/pages/building-your-application/configuring/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Error Handling\",\"description\":\"Handle errors in your Next.js app.\",\"path\":\"14/pages/building-your-application/configuring/error-handling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Debugging\",\"description\":\"Learn how to debug your Next.js application with VS Code or Chrome DevTools.\",\"path\":\"14/pages/building-your-application/configuring/debugging\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Preview Mode\",\"description\":\"Next.js has the preview mode for statically generated pages. 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Unit Testing.\",\"path\":\"14/pages/building-your-application/testing/jest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Playwright\",\"description\":\"Learn how to set up Next.js with Playwright for End-to-End (E2E) and Integration testing.\",\"path\":\"14/pages/building-your-application/testing/playwright\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Cypress\",\"description\":\"Learn how to set up Next.js with Cypress for End-to-End (E2E) and Component Testing.\",\"path\":\"14/pages/building-your-application/testing/cypress\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Authentication\",\"description\":\"Learn how to implement authentication in Next.js, covering best practices, securing routes, authorization techniques, and session management.\",\"path\":\"14/pages/building-your-application/authentication\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Deploying\",\"description\":\"Learn how to deploy your Next.js app to production, either managed or self-hosted.\",\"path\":\"14/pages/building-your-application/deploying\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Production Checklist\",\"description\":\"Recommendations to ensure the best performance and user experience before taking your Next.js application to production.\",\"path\":\"14/pages/building-your-application/deploying/production-checklist\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Exports\",\"description\":\"Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server.\",\"path\":\"14/pages/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Multi-Zones\",\"description\":\"Learn how to build micro-frontends using Next.js Multi-Zones to deploy multiple Next.js apps under a single domain.\",\"path\":\"14/pages/building-your-application/deploying/multi-zones\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Continuous Integration (CI) Build Caching\",\"description\":\"Learn how to configure CI to cache Next.js builds\",\"path\":\"14/pages/building-your-application/deploying/ci-build-caching\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"14/pages/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"14/pages/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"From Pages to App\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"14/pages/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Vite\",\"description\":\"Learn how to migrate your existing React application from Vite to Next.js.\",\"path\":\"14/pages/building-your-application/upgrading/from-vite\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Create React App\",\"description\":\"Learn how to migrate your existing React application from Create React App to Next.js.\",\"path\":\"14/pages/building-your-application/upgrading/from-create-react-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 14\",\"description\":\"Upgrade your Next.js Application from Version 13 to 14.\",\"path\":\"14/pages/building-your-application/upgrading/version-14\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 13\",\"description\":\"Upgrade your Next.js Application from Version 12 to 13.\",\"path\":\"14/pages/building-your-application/upgrading/version-13\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 12\",\"description\":\"Upgrade your Next.js Application from Version 11 to Version 12.\",\"path\":\"14/pages/building-your-application/upgrading/version-12\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 11\",\"description\":\"Upgrade your Next.js Application from Version 10 to Version 11.\",\"path\":\"14/pages/building-your-application/upgrading/version-11\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 10\",\"description\":\"Upgrade your Next.js Application from Version 9 to Version 10.\",\"path\":\"14/pages/building-your-application/upgrading/version-10\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 9\",\"description\":\"Upgrade your Next.js Application from Version 8 to Version 9.\",\"path\":\"14/pages/building-your-application/upgrading/version-9\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the Pages Router.\",\"path\":\"14/pages/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components in the Pages Router.\",\"path\":\"14/pages/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"API Reference for the Font Module\",\"path\":\"14/pages/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cHead\u003e\",\"description\":\"Add custom elements to the `head` of your page with the built-in Head component.\",\"path\":\"14/pages/api-reference/components/head\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"14/pages/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e (Legacy)\",\"description\":\"Backwards compatible Image Optimization with the Legacy Image component.\",\"path\":\"14/pages/api-reference/components/image-legacy\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"API reference for the \u003cLink\u003e component.\",\"path\":\"14/pages/api-reference/components/link\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cScript\u003e\",\"description\":\"Optimize third-party scripts in your Next.js application using the built-in `next/script` Component.\",\"path\":\"14/pages/api-reference/components/script\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Functions and Hooks in Pages Router.\",\"path\":\"14/pages/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"getInitialProps\",\"description\":\"Fetch dynamic data on the server for your React component with getInitialProps.\",\"path\":\"14/pages/api-reference/functions/get-initial-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getServerSideProps\",\"description\":\"API reference for `getServerSideProps`. Learn how to fetch data on each request with Next.js.\",\"path\":\"14/pages/api-reference/functions/get-server-side-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getStaticPaths\",\"description\":\"API reference for `getStaticPaths`. Learn how to fetch data and generate static pages with `getStaticPaths`.\",\"path\":\"14/pages/api-reference/functions/get-static-paths\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getStaticProps\",\"description\":\"API reference for `getStaticProps`. Learn how to use `getStaticProps` to generate static pages with Next.js.\",\"path\":\"14/pages/api-reference/functions/get-static-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextRequest\",\"description\":\"API Reference for NextRequest.\",\"path\":\"14/pages/api-reference/functions/next-request\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextResponse\",\"description\":\"API Reference for NextResponse.\",\"path\":\"14/pages/api-reference/functions/next-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useAmp\",\"description\":\"Enable AMP in a page, and control the way Next.js adds AMP to the page with the AMP config.\",\"path\":\"14/pages/api-reference/functions/use-amp\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useReportWebVitals\",\"description\":\"useReportWebVitals\",\"path\":\"14/pages/api-reference/functions/use-report-web-vitals\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useRouter\",\"description\":\"Learn more about the API of the Next.js Router, and access the router instance in your page with the useRouter hook.\",\"path\":\"14/pages/api-reference/functions/use-router\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"userAgent\",\"description\":\"The userAgent helper extends the Web Request API with additional properties and methods to interact with the user agent object from the request.\",\"path\":\"14/pages/api-reference/functions/userAgent\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"next.config.js Options\",\"description\":\"Learn about the options available in next.config.js for the Pages Router.\",\"path\":\"14/pages/api-reference/next-config-js\",\"version\":\"$undefined\",\"children\":[{\"title\":\"assetPrefix\",\"description\":\"Learn how to use the assetPrefix config option to configure your CDN.\",\"path\":\"14/pages/api-reference/next-config-js/assetPrefix\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"basePath\",\"description\":\"Use `basePath` to deploy a Next.js application under a sub-path of a domain.\",\"path\":\"14/pages/api-reference/next-config-js/basePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"compress\",\"description\":\"Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here.\",\"path\":\"14/pages/api-reference/next-config-js/compress\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"crossOrigin\",\"description\":\"Use the `crossOrigin` option to add a crossOrigin tag on the `script` tags generated by `next/script` and `next/head`.\",\"path\":\"14/pages/api-reference/next-config-js/crossOrigin\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"devIndicators\",\"description\":\"Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here.\",\"path\":\"14/pages/api-reference/next-config-js/devIndicators\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"distDir\",\"description\":\"Set a custom build directory to use instead of the default .next directory.\",\"path\":\"14/pages/api-reference/next-config-js/distDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"env\",\"description\":\"Learn to add and access environment variables in your Next.js application at build time.\",\"path\":\"14/pages/api-reference/next-config-js/env\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"eslint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.\",\"path\":\"14/pages/api-reference/next-config-js/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"exportPathMap\",\"description\":\"Customize the pages that will be exported as HTML files when using `next export`.\",\"path\":\"14/pages/api-reference/next-config-js/exportPathMap\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateBuildId\",\"description\":\"Configure the build id, which is used to identify the current build in which your application is being served.\",\"path\":\"14/pages/api-reference/next-config-js/generateBuildId\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateEtags\",\"description\":\"Next.js will generate etags for every page by default. Learn more about how to disable etag generation here.\",\"path\":\"14/pages/api-reference/next-config-js/generateEtags\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"Add custom HTTP headers to your Next.js app.\",\"path\":\"14/pages/api-reference/next-config-js/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"httpAgentOptions\",\"description\":\"Next.js will automatically use HTTP Keep-Alive by default. Learn more about how to disable HTTP Keep-Alive here.\",\"path\":\"14/pages/api-reference/next-config-js/httpAgentOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"images\",\"description\":\"Custom configuration for the next/image loader\",\"path\":\"14/pages/api-reference/next-config-js/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"instrumentationHook\",\"description\":\"Use the instrumentationHook option to set up instrumentation in your Next.js App.\",\"path\":\"14/pages/api-reference/next-config-js/instrumentationHook\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"onDemandEntries\",\"description\":\"Configure how Next.js will dispose and keep in memory pages created in development.\",\"path\":\"14/pages/api-reference/next-config-js/onDemandEntries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"optimizePackageImports\",\"description\":\"API Reference for optmizedPackageImports Next.js Config Option\",\"path\":\"14/pages/api-reference/next-config-js/optimizePackageImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"output\",\"description\":\"Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here.\",\"path\":\"14/pages/api-reference/next-config-js/output\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"pageExtensions\",\"description\":\"Extend the default page extensions used by Next.js when resolving pages in the Pages Router.\",\"path\":\"14/pages/api-reference/next-config-js/pageExtensions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"poweredByHeader\",\"description\":\"Next.js will add the `x-powered-by` header by default. Learn to opt-out of it here.\",\"path\":\"14/pages/api-reference/next-config-js/poweredByHeader\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"productionBrowserSourceMaps\",\"description\":\"Enables browser source map generation during the production build.\",\"path\":\"14/pages/api-reference/next-config-js/productionBrowserSourceMaps\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"reactStrictMode\",\"description\":\"The complete Next.js runtime is now Strict Mode-compliant, learn how to opt-in\",\"path\":\"14/pages/api-reference/next-config-js/reactStrictMode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"redirects\",\"description\":\"Add redirects to your Next.js app.\",\"path\":\"14/pages/api-reference/next-config-js/redirects\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"rewrites\",\"description\":\"Add rewrites to your Next.js app.\",\"path\":\"14/pages/api-reference/next-config-js/rewrites\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Runtime Config\",\"description\":\"Add client and server runtime configuration to your Next.js app.\",\"path\":\"14/pages/api-reference/next-config-js/runtime-configuration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"trailingSlash\",\"description\":\"Configure Next.js pages to resolve with or without a trailing slash.\",\"path\":\"14/pages/api-reference/next-config-js/trailingSlash\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"transpilePackages\",\"description\":\"Automatically transpile and bundle dependencies from local packages (like monorepos) or from external dependencies (`node_modules`).\",\"path\":\"14/pages/api-reference/next-config-js/transpilePackages\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"turbo\",\"description\":\"Configure Next.js with Turbopack-specific options\",\"path\":\"14/pages/api-reference/next-config-js/turbo\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"typescript\",\"description\":\"Next.js reports TypeScript errors by default. Learn to opt-out of this behavior here.\",\"path\":\"14/pages/api-reference/next-config-js/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"urlImports\",\"description\":\"Configure Next.js to allow importing modules from external URLs (experimental).\",\"path\":\"14/pages/api-reference/next-config-js/urlImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webpack\",\"description\":\"Learn how to customize the webpack config used by Next.js\",\"path\":\"14/pages/api-reference/next-config-js/webpack\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webVitalsAttribution\",\"description\":\"Learn how to use the webVitalsAttribution option to pinpoint the source of Web Vitals issues.\",\"path\":\"14/pages/api-reference/next-config-js/webVitalsAttribution\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Edge Runtime\",\"description\":\"API Reference for the Edge Runtime.\",\"path\":\"14/pages/api-reference/edge\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"CLI\",\"description\":\"API Reference for the Next.js Command Line Interface (CLI) tools.\",\"path\":\"14/pages/api-reference/cli\",\"version\":\"$undefined\",\"children\":[{\"title\":\"CLI\",\"description\":\"Create Next.js apps using one command with the create-next-app CLI.\",\"path\":\"14/pages/api-reference/cli/create-next-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"next CLI\",\"description\":\"Learn how to run and build your application with the Next.js CLI.\",\"path\":\"14/pages/api-reference/cli/next\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"Architecture\",\"description\":\"How Next.js Works\",\"path\":\"14/architecture\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Accessibility\",\"description\":\"The built-in accessibility features of Next.js.\",\"path\":\"14/architecture/accessibility\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fast Refresh\",\"description\":\"Fast Refresh is a hot module reloading experience that gives you instantaneous feedback on edits made to your React components.\",\"path\":\"14/architecture/fast-refresh\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Next.js Compiler\",\"description\":\"Next.js Compiler, written in Rust, which transforms and minifies your Next.js application.\",\"path\":\"14/architecture/nextjs-compiler\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Supported Browsers\",\"description\":\"Browser support and which JavaScript features are supported by Next.js.\",\"path\":\"14/architecture/supported-browsers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Turbopack\",\"description\":\"Turbopack is an incremental bundler optimized for JavaScript and TypeScript, written in Rust, and built into Next.js.\",\"path\":\"14/architecture/turbopack\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Community\",\"description\":\"Get involved in the Next.js community.\",\"path\":\"14/community\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Contribution Guide\",\"description\":\"Learn how to contribute to Next.js Documentation\",\"path\":\"14/community/contribution-guide\",\"version\":\"$undefined\",\"children\":[]}]}],\"canary\":[{\"title\":\"Getting Started\",\"description\":\"Learn how to create full-stack web applications with the Next.js App Router.\",\"path\":\"canary/app/getting-started\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Installation\",\"description\":\"Learn how to create a new Next.js application with `create-next-app`, and set up TypeScript, ESLint, and Module Path Aliases.\",\"path\":\"canary/app/getting-started/installation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Project Structure\",\"description\":\"Learn about the folder and file conventions in a Next.js project, and how to organize your project.\",\"path\":\"canary/app/getting-started/project-structure\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Building Your Application\",\"description\":\"Learn how to use Next.js features to build your application.\",\"path\":\"canary/app/building-your-application\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Routing\",\"description\":\"Learn the fundamentals of routing for front-end applications.\",\"path\":\"canary/app/building-your-application/routing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Defining Routes\",\"description\":\"Learn how to create your first route in Next.js.\",\"path\":\"canary/app/building-your-application/routing/defining-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Pages\",\"description\":\"Create your first page in Next.js\",\"path\":\"canary/app/building-your-application/routing/pages\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Layouts and Templates\",\"description\":\"Create your first shared layout in Next.js.\",\"path\":\"canary/app/building-your-application/routing/layouts-and-templates\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Linking and Navigating\",\"description\":\"Learn how navigation works in Next.js, and how to use the Link Component and `useRouter` hook.\",\"path\":\"canary/app/building-your-application/routing/linking-and-navigating\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Error Handling\",\"description\":\"Learn how to display expected errors and handle uncaught exceptions.\",\"path\":\"canary/app/building-your-application/routing/error-handling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Loading UI and Streaming\",\"description\":\"Built on top of Suspense, Loading UI allows you to create a fallback for specific route segments, and automatically stream content as it becomes ready.\",\"path\":\"canary/app/building-your-application/routing/loading-ui-and-streaming\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Redirecting\",\"description\":\"Learn the different ways to handle redirects in Next.js.\",\"path\":\"canary/app/building-your-application/routing/redirecting\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Groups\",\"description\":\"Route Groups can be used to partition your Next.js application into different sections.\",\"path\":\"canary/app/building-your-application/routing/route-groups\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Dynamic Routes\",\"description\":\"Dynamic Routes can be used to programmatically generate route segments from dynamic data.\",\"path\":\"canary/app/building-your-application/routing/dynamic-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Parallel Routes\",\"description\":\"Simultaneously render one or more pages in the same view that can be navigated independently. A pattern for highly dynamic applications.\",\"path\":\"canary/app/building-your-application/routing/parallel-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Intercepting Routes\",\"description\":\"Use intercepting routes to load a new route within the current layout while masking the browser URL, useful for advanced routing patterns such as modals.\",\"path\":\"canary/app/building-your-application/routing/intercepting-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Handlers\",\"description\":\"Create custom request handlers for a given route using the Web's Request and Response APIs.\",\"path\":\"canary/app/building-your-application/routing/route-handlers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Middleware\",\"description\":\"Learn how to use Middleware to run code before a request is completed.\",\"path\":\"canary/app/building-your-application/routing/middleware\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Internationalization\",\"description\":\"Add support for multiple languages with internationalized routing and localized content.\",\"path\":\"canary/app/building-your-application/routing/internationalization\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Data Fetching\",\"description\":\"Learn how to fetch, cache, revalidate, and mutate data with Next.js.\",\"path\":\"canary/app/building-your-application/data-fetching\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Data Fetching and Caching\",\"description\":\"Learn best practices for fetching data on the server or client in Next.js.\",\"path\":\"canary/app/building-your-application/data-fetching/fetching\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Server Actions and Mutations\",\"description\":\"Learn how to handle form submissions and data mutations with Next.js.\",\"path\":\"canary/app/building-your-application/data-fetching/server-actions-and-mutations\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Incremental Static Regeneration (ISR)\",\"description\":\"Learn how to create or update static pages at runtime with Incremental Static Regeneration.\",\"path\":\"canary/app/building-your-application/data-fetching/incremental-static-regeneration\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Rendering\",\"description\":\"Learn the differences between Next.js rendering environments, strategies, and runtimes.\",\"path\":\"canary/app/building-your-application/rendering\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Server Components\",\"description\":\"Learn how you can use React Server Components to render parts of your application on the server.\",\"path\":\"canary/app/building-your-application/rendering/server-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Client Components\",\"description\":\"Learn how to use Client Components to render parts of your application on the client.\",\"path\":\"canary/app/building-your-application/rendering/client-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Composition Patterns\",\"description\":\"Recommended patterns for using Server and Client Components.\",\"path\":\"canary/app/building-your-application/rendering/composition-patterns\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Partial Prerendering\",\"description\":\"Learn how to combine the benefits of static and dynamic rendering with Partial Prerendering.\",\"path\":\"canary/app/building-your-application/rendering/partial-prerendering\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Runtimes\",\"description\":\"Learn about the switchable runtimes (Edge and Node.js) in Next.js.\",\"path\":\"canary/app/building-your-application/rendering/edge-and-nodejs-runtimes\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Caching\",\"description\":\"An overview of caching mechanisms in Next.js.\",\"path\":\"canary/app/building-your-application/caching\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Styling\",\"description\":\"Learn the different ways you can style your Next.js application.\",\"path\":\"canary/app/building-your-application/styling\",\"version\":\"$undefined\",\"children\":[{\"title\":\"CSS\",\"description\":\"Style your Next.js Application with CSS Modules, Global Styles, and external stylesheets.\",\"path\":\"canary/app/building-your-application/styling/css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Tailwind CSS\",\"description\":\"Style your Next.js Application using Tailwind CSS.\",\"path\":\"canary/app/building-your-application/styling/tailwind-css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Sass\",\"description\":\"Style your Next.js application using Sass.\",\"path\":\"canary/app/building-your-application/styling/sass\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"CSS-in-JS\",\"description\":\"Use CSS-in-JS libraries with Next.js\",\"path\":\"canary/app/building-your-application/styling/css-in-js\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Optimizing\",\"description\":\"Optimize your Next.js application for best performance and user experience.\",\"path\":\"canary/app/building-your-application/optimizing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Images\",\"description\":\"Optimize your images with the built-in `next/image` component.\",\"path\":\"canary/app/building-your-application/optimizing/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Videos\",\"description\":\"Recommendations and best practices for optimizing videos in your Next.js application.\",\"path\":\"canary/app/building-your-application/optimizing/videos\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fonts\",\"description\":\"Optimize your application's web fonts with the built-in `next/font` loaders.\",\"path\":\"canary/app/building-your-application/optimizing/fonts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Metadata\",\"description\":\"Use the Metadata API to define metadata in any layout or page.\",\"path\":\"canary/app/building-your-application/optimizing/metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Scripts\",\"description\":\"Optimize 3rd party scripts with the built-in Script component.\",\"path\":\"canary/app/building-your-application/optimizing/scripts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Package Bundling\",\"description\":\"Learn how to optimize your application's server and client bundles.\",\"path\":\"canary/app/building-your-application/optimizing/package-bundling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Lazy Loading\",\"description\":\"Lazy load imported libraries and React Components to improve your application's loading performance.\",\"path\":\"canary/app/building-your-application/optimizing/lazy-loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Analytics\",\"description\":\"Measure and track page performance using Next.js Speed Insights\",\"path\":\"canary/app/building-your-application/optimizing/analytics\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Instrumentation\",\"description\":\"Learn how to use instrumentation to run code at server startup in your Next.js app\",\"path\":\"canary/app/building-your-application/optimizing/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"OpenTelemetry\",\"description\":\"Learn how to instrument your Next.js app with OpenTelemetry.\",\"path\":\"canary/app/building-your-application/optimizing/open-telemetry\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Assets\",\"description\":\"Next.js allows you to serve static files, like images, in the public directory. You can learn how it works here.\",\"path\":\"canary/app/building-your-application/optimizing/static-assets\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Third Party Libraries\",\"description\":\"Optimize the performance of third-party libraries in your application with the `@next/third-parties` package.\",\"path\":\"canary/app/building-your-application/optimizing/third-party-libraries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Memory Usage\",\"description\":\"Optimize memory used by your application in development and production.\",\"path\":\"canary/app/building-your-application/optimizing/memory-usage\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuring\",\"description\":\"Learn how to configure your Next.js application.\",\"path\":\"canary/app/building-your-application/configuring\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Environment Variables\",\"description\":\"Learn to add and access environment variables in your Next.js application.\",\"path\":\"canary/app/building-your-application/configuring/environment-variables\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"MDX\",\"description\":\"Learn how to configure MDX and use it in your Next.js apps.\",\"path\":\"canary/app/building-your-application/configuring/mdx\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"src Directory\",\"description\":\"Save pages under the `src` directory as an alternative to the root `pages` directory.\",\"path\":\"canary/app/building-your-application/configuring/src-directory\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Custom Server\",\"description\":\"Start a Next.js app programmatically using a custom server.\",\"path\":\"canary/app/building-your-application/configuring/custom-server\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Draft Mode\",\"description\":\"Next.js has draft mode to toggle between static and dynamic pages. You can learn how it works with App Router here.\",\"path\":\"canary/app/building-your-application/configuring/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Content Security Policy\",\"description\":\"Learn how to set a Content Security Policy (CSP) for your Next.js application.\",\"path\":\"canary/app/building-your-application/configuring/content-security-policy\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Debugging\",\"description\":\"Learn how to debug your Next.js application with VS Code, Chrome DevTools, or Firefox DevTools.\",\"path\":\"canary/app/building-your-application/configuring/debugging\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Progressive Web Applications (PWA)\",\"description\":\"Learn how to build a Progressive Web Application (PWA) with Next.js.\",\"path\":\"canary/app/building-your-application/configuring/progressive-web-apps\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Testing\",\"description\":\"Learn how to set up Next.js with four commonly used testing tools — Cypress, Playwright, Vitest, and Jest.\",\"path\":\"canary/app/building-your-application/testing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Vitest\",\"description\":\"Learn how to set up Vitest with Next.js for Unit Testing.\",\"path\":\"canary/app/building-your-application/testing/vitest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Jest\",\"description\":\"Learn how to set up Jest with Next.js for Unit Testing and Snapshot Testing.\",\"path\":\"canary/app/building-your-application/testing/jest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Playwright\",\"description\":\"Learn how to set up Playwright with Next.js for End-to-End (E2E) Testing.\",\"path\":\"canary/app/building-your-application/testing/playwright\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Cypress\",\"description\":\"Learn how to set up Cypress with Next.js for End-to-End (E2E) and Component Testing.\",\"path\":\"canary/app/building-your-application/testing/cypress\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Authentication\",\"description\":\"Learn how to implement authentication in your Next.js application.\",\"path\":\"canary/app/building-your-application/authentication\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Deploying\",\"description\":\"Learn how to deploy your Next.js app to production, either managed or self-hosted.\",\"path\":\"canary/app/building-your-application/deploying\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Production Checklist\",\"description\":\"Recommendations to ensure the best performance and user experience before taking your Next.js application to production.\",\"path\":\"canary/app/building-your-application/deploying/production-checklist\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Exports\",\"description\":\"Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server.\",\"path\":\"canary/app/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Multi-Zones\",\"description\":\"Learn how to build micro-frontends using Next.js Multi-Zones to deploy multiple Next.js apps under a single domain.\",\"path\":\"canary/app/building-your-application/deploying/multi-zones\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"canary/app/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"canary/app/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 15\",\"description\":\"Upgrade your Next.js Application from Version 14 to 15.\",\"path\":\"canary/app/building-your-application/upgrading/version-15\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 14\",\"description\":\"Upgrade your Next.js Application from Version 13 to 14.\",\"path\":\"canary/app/building-your-application/upgrading/version-14\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"App Router Migration\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"canary/app/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Create React App\",\"description\":\"Learn how to migrate your existing React application from Create React App to Next.js.\",\"path\":\"canary/app/building-your-application/upgrading/from-create-react-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Vite\",\"description\":\"Learn how to migrate your existing React application from Vite to Next.js.\",\"path\":\"canary/app/building-your-application/upgrading/from-vite\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Examples\",\"description\":\"Examples of popular Next.js UI patterns and use cases.\",\"path\":\"canary/app/building-your-application/examples\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the App Router.\",\"path\":\"canary/app/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Directives\",\"description\":\"Directives are used to modify the behavior of your Next.js application.\",\"path\":\"canary/app/api-reference/directives\",\"version\":\"$undefined\",\"children\":[{\"title\":\"use cache\",\"description\":\"Learn how to use the use cache directive to cache data in your Next.js application.\",\"path\":\"canary/app/api-reference/directives/use-cache\",\"version\":\"canary\",\"children\":[]},{\"title\":\"use client\",\"description\":\"Learn how to use the use client directive to render a component on the client.\",\"path\":\"canary/app/api-reference/directives/use-client\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"use server\",\"description\":\"Learn how to use the use server directive to execute code on the server.\",\"path\":\"canary/app/api-reference/directives/use-server\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components.\",\"path\":\"canary/app/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"Optimizing loading web fonts with the built-in `next/font` loaders.\",\"path\":\"canary/app/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cForm\u003e\",\"description\":\"Learn how to use the `\u003cForm\u003e` component to handle form submissions and search params updates with client-side navigation.\",\"path\":\"canary/app/api-reference/components/form\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"canary/app/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"Enable fast client-side navigation with the built-in `next/link` component.\",\"path\":\"canary/app/api-reference/components/link\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cScript\u003e\",\"description\":\"Optimize third-party scripts in your Next.js application using the built-in `next/script` Component.\",\"path\":\"canary/app/api-reference/components/script\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"File Conventions\",\"description\":\"API Reference for Next.js Special Files.\",\"path\":\"canary/app/api-reference/file-conventions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"default.js\",\"description\":\"API Reference for the default.js file.\",\"path\":\"canary/app/api-reference/file-conventions/default\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"error.js\",\"description\":\"API reference for the error.js special file.\",\"path\":\"canary/app/api-reference/file-conventions/error\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"instrumentation.js\",\"description\":\"API reference for the instrumentation.js file.\",\"path\":\"canary/app/api-reference/file-conventions/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"layout.js\",\"description\":\"API reference for the layout.js file.\",\"path\":\"canary/app/api-reference/file-conventions/layout\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"loading.js\",\"description\":\"API reference for the loading.js file.\",\"path\":\"canary/app/api-reference/file-conventions/loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"mdx-components.js\",\"description\":\"API reference for the mdx-components.js file.\",\"path\":\"canary/app/api-reference/file-conventions/mdx-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"middleware.js\",\"description\":\"API reference for the middleware.js file.\",\"path\":\"canary/app/api-reference/file-conventions/middleware\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"not-found.js\",\"description\":\"API reference for the not-found.js file.\",\"path\":\"canary/app/api-reference/file-conventions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"page.js\",\"description\":\"API reference for the page.js file.\",\"path\":\"canary/app/api-reference/file-conventions/page\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"route.js\",\"description\":\"API reference for the route.js special file.\",\"path\":\"canary/app/api-reference/file-conventions/route\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Segment Config\",\"description\":\"Learn about how to configure options for Next.js route segments.\",\"path\":\"canary/app/api-reference/file-conventions/route-segment-config\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"template.js\",\"description\":\"API Reference for the template.js file.\",\"path\":\"canary/app/api-reference/file-conventions/template\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Metadata Files\",\"description\":\"API documentation for the metadata file conventions.\",\"path\":\"canary/app/api-reference/file-conventions/metadata\",\"version\":\"$undefined\",\"children\":[{\"title\":\"favicon, icon, and apple-icon\",\"description\":\"API Reference for the Favicon, Icon and Apple Icon file conventions.\",\"path\":\"canary/app/api-reference/file-conventions/metadata/app-icons\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"manifest.json\",\"description\":\"API Reference for manifest.json file.\",\"path\":\"canary/app/api-reference/file-conventions/metadata/manifest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"opengraph-image and twitter-image\",\"description\":\"API Reference for the Open Graph Image and Twitter Image file conventions.\",\"path\":\"canary/app/api-reference/file-conventions/metadata/opengraph-image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"robots.txt\",\"description\":\"API Reference for robots.txt file.\",\"path\":\"canary/app/api-reference/file-conventions/metadata/robots\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"sitemap.xml\",\"description\":\"API Reference for the sitemap.xml file.\",\"path\":\"canary/app/api-reference/file-conventions/metadata/sitemap\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Next.js Functions and Hooks.\",\"path\":\"canary/app/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"cacheLife\",\"description\":\"Learn how to use the cacheLife function to set the cache expiration time for a cached function or component.\",\"path\":\"canary/app/api-reference/functions/cacheLife\",\"version\":\"canary\",\"children\":[]},{\"title\":\"cacheTag\",\"description\":\"Learn how to use the cacheTag function to manage cache invalidation in your Next.js application.\",\"path\":\"canary/app/api-reference/functions/cacheTag\",\"version\":\"canary\",\"children\":[]},{\"title\":\"connection\",\"description\":\"API Reference for the connection function.\",\"path\":\"canary/app/api-reference/functions/connection\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cookies\",\"description\":\"API Reference for the cookies function.\",\"path\":\"canary/app/api-reference/functions/cookies\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"draftMode\",\"description\":\"API Reference for the draftMode function.\",\"path\":\"canary/app/api-reference/functions/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"expirePath\",\"description\":\"API Reference for the expirePath function.\",\"path\":\"canary/app/api-reference/functions/expirePath\",\"version\":\"canary\",\"children\":[]},{\"title\":\"expireTag\",\"description\":\"API Reference for the expireTag function.\",\"path\":\"canary/app/api-reference/functions/expireTag\",\"version\":\"canary\",\"children\":[]},{\"title\":\"fetch\",\"description\":\"API reference for the extended fetch function.\",\"path\":\"canary/app/api-reference/functions/fetch\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateImageMetadata\",\"description\":\"Learn how to generate multiple images in a single Metadata API special file.\",\"path\":\"canary/app/api-reference/functions/generate-image-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateMetadata\",\"description\":\"Learn how to add Metadata to your Next.js application for improved search engine optimization (SEO) and web shareability.\",\"path\":\"canary/app/api-reference/functions/generate-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateSitemaps\",\"description\":\"Learn how to use the generateSiteMaps function to create multiple sitemaps for your application.\",\"path\":\"canary/app/api-reference/functions/generate-sitemaps\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateStaticParams\",\"description\":\"API reference for the generateStaticParams function.\",\"path\":\"canary/app/api-reference/functions/generate-static-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateViewport\",\"description\":\"API Reference for the generateViewport function.\",\"path\":\"canary/app/api-reference/functions/generate-viewport\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"API reference for the headers function.\",\"path\":\"canary/app/api-reference/functions/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ImageResponse\",\"description\":\"API Reference for the ImageResponse constructor.\",\"path\":\"canary/app/api-reference/functions/image-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextRequest\",\"description\":\"API Reference for NextRequest.\",\"path\":\"canary/app/api-reference/functions/next-request\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextResponse\",\"description\":\"API Reference for NextResponse.\",\"path\":\"canary/app/api-reference/functions/next-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"notFound\",\"description\":\"API Reference for the notFound function.\",\"path\":\"canary/app/api-reference/functions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"permanentRedirect\",\"description\":\"API Reference for the permanentRedirect function.\",\"path\":\"canary/app/api-reference/functions/permanentRedirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"redirect\",\"description\":\"API Reference for the redirect function.\",\"path\":\"canary/app/api-reference/functions/redirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidatePath\",\"description\":\"API Reference for the revalidatePath function.\",\"path\":\"canary/app/api-reference/functions/revalidatePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidateTag\",\"description\":\"API Reference for the revalidateTag function.\",\"path\":\"canary/app/api-reference/functions/revalidateTag\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"unstable_after\",\"description\":\"API Reference for the after function.\",\"path\":\"canary/app/api-reference/functions/unstable_after\",\"version\":\"unstable\",\"children\":[]},{\"title\":\"unstable_cache\",\"description\":\"API Reference for the unstable_cache function.\",\"path\":\"canary/app/api-reference/functions/unstable_cache\",\"version\":\"legacy\",\"children\":[]},{\"title\":\"unstable_noStore\",\"description\":\"API Reference for the unstable_noStore function.\",\"path\":\"canary/app/api-reference/functions/unstable_noStore\",\"version\":\"legacy\",\"children\":[]},{\"title\":\"unstable_rethrow\",\"description\":\"API Reference for the unstable_rethrow function.\",\"path\":\"canary/app/api-reference/functions/unstable_rethrow\",\"version\":\"unstable\",\"children\":[]},{\"title\":\"useParams\",\"description\":\"API Reference for the useParams hook.\",\"path\":\"canary/app/api-reference/functions/use-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"usePathname\",\"description\":\"API Reference for the usePathname hook.\",\"path\":\"canary/app/api-reference/functions/use-pathname\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useReportWebVitals\",\"description\":\"API Reference for the useReportWebVitals function.\",\"path\":\"canary/app/api-reference/functions/use-report-web-vitals\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useRouter\",\"description\":\"API reference for the useRouter hook.\",\"path\":\"canary/app/api-reference/functions/use-router\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSearchParams\",\"description\":\"API Reference for the useSearchParams hook.\",\"path\":\"canary/app/api-reference/functions/use-search-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegment\",\"description\":\"API Reference for the useSelectedLayoutSegment hook.\",\"path\":\"canary/app/api-reference/functions/use-selected-layout-segment\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegments\",\"description\":\"API Reference for the useSelectedLayoutSegments hook.\",\"path\":\"canary/app/api-reference/functions/use-selected-layout-segments\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"userAgent\",\"description\":\"The userAgent helper extends the Web Request API with additional properties and methods to interact with the user agent object from the request.\",\"path\":\"canary/app/api-reference/functions/userAgent\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuration\",\"description\":\"Learn how to configure Next.js applications.\",\"path\":\"canary/app/api-reference/config\",\"version\":\"$undefined\",\"children\":[{\"title\":\"next.config.js\",\"description\":\"Learn how to configure your application with next.config.js.\",\"path\":\"canary/app/api-reference/config/next-config-js\",\"version\":\"$undefined\",\"children\":[{\"title\":\"appDir\",\"description\":\"Enable the App Router to use layouts, streaming, and more.\",\"path\":\"canary/app/api-reference/config/next-config-js/appDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"assetPrefix\",\"description\":\"Learn how to use the assetPrefix config option to configure your CDN.\",\"path\":\"canary/app/api-reference/config/next-config-js/assetPrefix\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"basePath\",\"description\":\"Use `basePath` to deploy a Next.js application under a sub-path of a domain.\",\"path\":\"canary/app/api-reference/config/next-config-js/basePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cacheLife\",\"description\":\"Learn how to set up cacheLife configurations in Next.js.\",\"path\":\"canary/app/api-reference/config/next-config-js/cacheLife\",\"version\":\"canary\",\"children\":[]},{\"title\":\"compress\",\"description\":\"Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here.\",\"path\":\"canary/app/api-reference/config/next-config-js/compress\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"crossOrigin\",\"description\":\"Use the `crossOrigin` option to add a crossOrigin tag on the `script` tags generated by `next/script`.\",\"path\":\"canary/app/api-reference/config/next-config-js/crossOrigin\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cssChunking\",\"description\":\"Use the `cssChunking` option to control how CSS files are chunked in your Next.js application.\",\"path\":\"canary/app/api-reference/config/next-config-js/cssChunking\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"devIndicators\",\"description\":\"Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here.\",\"path\":\"canary/app/api-reference/config/next-config-js/devIndicators\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"distDir\",\"description\":\"Set a custom build directory to use instead of the default .next directory.\",\"path\":\"canary/app/api-reference/config/next-config-js/distDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"dynamicIO\",\"description\":\"Learn how to enable the dynamicIO flag in Next.js.\",\"path\":\"canary/app/api-reference/config/next-config-js/dynamicIO\",\"version\":\"canary\",\"children\":[]},{\"title\":\"env\",\"description\":\"Learn to add and access environment variables in your Next.js application at build time.\",\"path\":\"canary/app/api-reference/config/next-config-js/env\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"eslint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.\",\"path\":\"canary/app/api-reference/config/next-config-js/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"expireTime\",\"description\":\"Customize stale-while-revalidate expire time for ISR enabled pages.\",\"path\":\"canary/app/api-reference/config/next-config-js/expireTime\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"exportPathMap\",\"description\":\"Customize the pages that will be exported as HTML files when using `next export`.\",\"path\":\"canary/app/api-reference/config/next-config-js/exportPathMap\",\"version\":\"legacy\",\"children\":[]},{\"title\":\"generateBuildId\",\"description\":\"Configure the build id, which is used to identify the current build in which your application is being served.\",\"path\":\"canary/app/api-reference/config/next-config-js/generateBuildId\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateEtags\",\"description\":\"Next.js will generate etags for every page by default. Learn more about how to disable etag generation here.\",\"path\":\"canary/app/api-reference/config/next-config-js/generateEtags\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"Add custom HTTP headers to your Next.js app.\",\"path\":\"canary/app/api-reference/config/next-config-js/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"httpAgentOptions\",\"description\":\"Next.js will automatically use HTTP Keep-Alive by default. Learn more about how to disable HTTP Keep-Alive here.\",\"path\":\"canary/app/api-reference/config/next-config-js/httpAgentOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"images\",\"description\":\"Custom configuration for the next/image loader\",\"path\":\"canary/app/api-reference/config/next-config-js/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cacheHandler\",\"description\":\"Configure the Next.js cache used for storing and revalidating data to use any external service like Redis, Memcached, or others.\",\"path\":\"canary/app/api-reference/config/next-config-js/incrementalCacheHandlerPath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"inlineCss\",\"description\":\"Enable inline CSS support.\",\"path\":\"canary/app/api-reference/config/next-config-js/inlineCss\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"logging\",\"description\":\"Configure how data fetches are logged to the console when running Next.js in development mode.\",\"path\":\"canary/app/api-reference/config/next-config-js/logging\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"mdxRs\",\"description\":\"Use the new Rust compiler to compile MDX files in the App Router.\",\"path\":\"canary/app/api-reference/config/next-config-js/mdxRs\",\"version\":\"experimental.\",\"children\":[]},{\"title\":\"onDemandEntries\",\"description\":\"Configure how Next.js will dispose and keep in memory pages created in development.\",\"path\":\"canary/app/api-reference/config/next-config-js/onDemandEntries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"optimizePackageImports\",\"description\":\"API Reference for optimizePackageImports Next.js Config Option\",\"path\":\"canary/app/api-reference/config/next-config-js/optimizePackageImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"output\",\"description\":\"Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here.\",\"path\":\"canary/app/api-reference/config/next-config-js/output\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"pageExtensions\",\"description\":\"Extend the default page extensions used by Next.js when resolving pages in the Pages Router.\",\"path\":\"canary/app/api-reference/config/next-config-js/pageExtensions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"poweredByHeader\",\"description\":\"Next.js will add the `x-powered-by` header by default. 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server.\",\"path\":\"canary/pages/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Multi-Zones\",\"description\":\"Learn how to build micro-frontends using Next.js Multi-Zones to deploy multiple Next.js apps under a single domain.\",\"path\":\"canary/pages/building-your-application/deploying/multi-zones\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Continuous Integration (CI) Build Caching\",\"description\":\"Learn how to configure CI to cache Next.js builds\",\"path\":\"canary/pages/building-your-application/deploying/ci-build-caching\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"canary/pages/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"canary/pages/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"From Pages to App\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"canary/pages/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Vite\",\"description\":\"Learn how to migrate your existing React application from Vite to Next.js.\",\"path\":\"canary/pages/building-your-application/upgrading/from-vite\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Create React App\",\"description\":\"Learn how to migrate your existing React application from Create React App to Next.js.\",\"path\":\"canary/pages/building-your-application/upgrading/from-create-react-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 14\",\"description\":\"Upgrade your Next.js 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10.\",\"path\":\"canary/pages/building-your-application/upgrading/version-10\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 9\",\"description\":\"Upgrade your Next.js Application from Version 8 to Version 9.\",\"path\":\"canary/pages/building-your-application/upgrading/version-9\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the Pages Router.\",\"path\":\"canary/pages/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components in the Pages Router.\",\"path\":\"canary/pages/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"API Reference for the Font Module\",\"path\":\"canary/pages/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cForm\u003e\",\"description\":\"Learn how to use the `\u003cForm\u003e` component to handle form submissions and search params updates with client-side navigation.\",\"path\":\"canary/pages/api-reference/components/form\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cHead\u003e\",\"description\":\"Add custom elements to the `head` of your page with the built-in Head component.\",\"path\":\"canary/pages/api-reference/components/head\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"canary/pages/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e (Legacy)\",\"description\":\"Backwards compatible Image Optimization with the Legacy Image component.\",\"path\":\"canary/pages/api-reference/components/image-legacy\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"API reference for the \u003cLink\u003e component.\",\"path\":\"canary/pages/api-reference/components/link\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cScript\u003e\",\"description\":\"Optimize third-party scripts in your Next.js application using the built-in `next/script` Component.\",\"path\":\"canary/pages/api-reference/components/script\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Functions and Hooks in Pages Router.\",\"path\":\"canary/pages/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"getInitialProps\",\"description\":\"Fetch dynamic data on the server for your React component with getInitialProps.\",\"path\":\"canary/pages/api-reference/functions/get-initial-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getServerSideProps\",\"description\":\"API reference for `getServerSideProps`. Learn how to fetch data on each request with Next.js.\",\"path\":\"canary/pages/api-reference/functions/get-server-side-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getStaticPaths\",\"description\":\"API reference for `getStaticPaths`. Learn how to fetch data and generate static pages with `getStaticPaths`.\",\"path\":\"canary/pages/api-reference/functions/get-static-paths\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getStaticProps\",\"description\":\"API reference for `getStaticProps`. Learn how to use `getStaticProps` to generate static pages with Next.js.\",\"path\":\"canary/pages/api-reference/functions/get-static-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextRequest\",\"description\":\"API Reference for NextRequest.\",\"path\":\"canary/pages/api-reference/functions/next-request\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextResponse\",\"description\":\"API Reference for NextResponse.\",\"path\":\"canary/pages/api-reference/functions/next-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useAmp\",\"description\":\"Enable AMP in a page, and control the way Next.js adds AMP to the page with the AMP config.\",\"path\":\"canary/pages/api-reference/functions/use-amp\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useReportWebVitals\",\"description\":\"useReportWebVitals\",\"path\":\"canary/pages/api-reference/functions/use-report-web-vitals\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useRouter\",\"description\":\"Learn more about the API of the Next.js Router, and access the router instance in your page with the useRouter hook.\",\"path\":\"canary/pages/api-reference/functions/use-router\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"userAgent\",\"description\":\"The userAgent helper extends the Web Request API with additional properties and methods to interact with the user agent object from the request.\",\"path\":\"canary/pages/api-reference/functions/userAgent\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuration\",\"description\":\"Learn how to configure your Next.js application.\",\"path\":\"canary/pages/api-reference/config\",\"version\":\"$undefined\",\"children\":[{\"title\":\"next.config.js Options\",\"description\":\"Learn about the options available in next.config.js for the Pages Router.\",\"path\":\"canary/pages/api-reference/config/next-config-js\",\"version\":\"$undefined\",\"children\":[{\"title\":\"assetPrefix\",\"description\":\"Learn how to use the assetPrefix config option to configure your CDN.\",\"path\":\"canary/pages/api-reference/config/next-config-js/assetPrefix\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"basePath\",\"description\":\"Use `basePath` to deploy a Next.js application under a sub-path of a domain.\",\"path\":\"canary/pages/api-reference/config/next-config-js/basePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"bundlePagesRouterDependencies\",\"description\":\"Enable automatic dependency bundling for Pages Router\",\"path\":\"canary/pages/api-reference/config/next-config-js/bundlePagesRouterDependencies\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"compress\",\"description\":\"Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here.\",\"path\":\"canary/pages/api-reference/config/next-config-js/compress\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"crossOrigin\",\"description\":\"Use the `crossOrigin` option to add a crossOrigin tag on the `script` tags generated by `next/script` and `next/head`.\",\"path\":\"canary/pages/api-reference/config/next-config-js/crossOrigin\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"devIndicators\",\"description\":\"Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here.\",\"path\":\"canary/pages/api-reference/config/next-config-js/devIndicators\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"distDir\",\"description\":\"Set a custom build directory to use instead of the default .next directory.\",\"path\":\"canary/pages/api-reference/config/next-config-js/distDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"env\",\"description\":\"Learn to add and access environment variables in your Next.js application at build time.\",\"path\":\"canary/pages/api-reference/config/next-config-js/env\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"eslint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.\",\"path\":\"canary/pages/api-reference/config/next-config-js/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"exportPathMap\",\"description\":\"Customize the pages that will be exported as HTML files when using `next export`.\",\"path\":\"canary/pages/api-reference/config/next-config-js/exportPathMap\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateBuildId\",\"description\":\"Configure the build id, which is used to identify the current build in which your application is being served.\",\"path\":\"canary/pages/api-reference/config/next-config-js/generateBuildId\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateEtags\",\"description\":\"Next.js will generate etags for every page by default. Learn more about how to disable etag generation here.\",\"path\":\"canary/pages/api-reference/config/next-config-js/generateEtags\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"Add custom HTTP headers to your Next.js app.\",\"path\":\"canary/pages/api-reference/config/next-config-js/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"httpAgentOptions\",\"description\":\"Next.js will automatically use HTTP Keep-Alive by default. Learn more about how to disable HTTP Keep-Alive here.\",\"path\":\"canary/pages/api-reference/config/next-config-js/httpAgentOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"images\",\"description\":\"Custom configuration for the next/image loader\",\"path\":\"canary/pages/api-reference/config/next-config-js/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"onDemandEntries\",\"description\":\"Configure how Next.js will dispose and keep in memory pages created in development.\",\"path\":\"canary/pages/api-reference/config/next-config-js/onDemandEntries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"optimizePackageImports\",\"description\":\"API Reference for optimizePackageImports Next.js Config Option\",\"path\":\"canary/pages/api-reference/config/next-config-js/optimizePackageImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"output\",\"description\":\"Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here.\",\"path\":\"canary/pages/api-reference/config/next-config-js/output\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"pageExtensions\",\"description\":\"Extend the default page extensions used by Next.js when resolving pages in the Pages Router.\",\"path\":\"canary/pages/api-reference/config/next-config-js/pageExtensions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"poweredByHeader\",\"description\":\"Next.js will add the `x-powered-by` header by default. 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Learn to opt-out of this behavior here.\",\"path\":\"canary/pages/api-reference/config/next-config-js/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"urlImports\",\"description\":\"Configure Next.js to allow importing modules from external URLs.\",\"path\":\"canary/pages/api-reference/config/next-config-js/urlImports\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"useLightningcss\",\"description\":\"Enable experimental support for Lightning CSS.\",\"path\":\"canary/pages/api-reference/config/next-config-js/useLightningcss\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"webpack\",\"description\":\"Learn how to customize the webpack config used by Next.js\",\"path\":\"canary/pages/api-reference/config/next-config-js/webpack\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webVitalsAttribution\",\"description\":\"Learn how to use the webVitalsAttribution option to pinpoint the source of Web Vitals issues.\",\"path\":\"canary/pages/api-reference/config/next-config-js/webVitalsAttribution\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"TypeScript\",\"description\":\"Next.js provides a TypeScript-first development experience for building your React application.\",\"path\":\"canary/pages/api-reference/config/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ESLint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. 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Works\",\"path\":\"canary/architecture\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Accessibility\",\"description\":\"The built-in accessibility features of Next.js.\",\"path\":\"canary/architecture/accessibility\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fast Refresh\",\"description\":\"Fast Refresh is a hot module reloading experience that gives you instantaneous feedback on edits made to your React components.\",\"path\":\"canary/architecture/fast-refresh\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Next.js Compiler\",\"description\":\"Next.js Compiler, written in Rust, which transforms and minifies your Next.js application.\",\"path\":\"canary/architecture/nextjs-compiler\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Supported Browsers\",\"description\":\"Browser support and which JavaScript features are supported by Next.js.\",\"path\":\"canary/architecture/supported-browsers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Turbopack\",\"description\":\"Turbopack is an incremental bundler optimized for JavaScript and TypeScript, written in Rust, and built into Next.js.\",\"path\":\"canary/architecture/turbopack\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Community\",\"description\":\"Get involved in the Next.js community.\",\"path\":\"canary/community\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Contribution Guide\",\"description\":\"Learn how to contribute to Next.js Documentation\",\"path\":\"canary/community/contribution-guide\",\"version\":\"$undefined\",\"children\":[]}]}],\"stable\":[{\"title\":\"Getting Started\",\"description\":\"Learn how to create full-stack web applications with the Next.js App Router.\",\"path\":\"app/getting-started\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Installation\",\"description\":\"Learn how to create a new Next.js application with `create-next-app`, and set up TypeScript, ESLint, and Module Path Aliases.\",\"path\":\"app/getting-started/installation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Project Structure\",\"description\":\"Learn about the folder and file conventions in a Next.js project, and how to organize your project.\",\"path\":\"app/getting-started/project-structure\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Building Your Application\",\"description\":\"Learn how to use Next.js features to build your application.\",\"path\":\"app/building-your-application\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Routing\",\"description\":\"Learn the fundamentals of routing for front-end applications.\",\"path\":\"app/building-your-application/routing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Defining Routes\",\"description\":\"Learn how to create your first route in Next.js.\",\"path\":\"app/building-your-application/routing/defining-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Pages\",\"description\":\"Create your first page in Next.js\",\"path\":\"app/building-your-application/routing/pages\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Layouts and Templates\",\"description\":\"Create your first shared layout in Next.js.\",\"path\":\"app/building-your-application/routing/layouts-and-templates\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Linking and Navigating\",\"description\":\"Learn how navigation works in Next.js, and how to use the Link Component and `useRouter` hook.\",\"path\":\"app/building-your-application/routing/linking-and-navigating\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Error Handling\",\"description\":\"Learn how to display expected errors and handle uncaught exceptions.\",\"path\":\"app/building-your-application/routing/error-handling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Loading UI and Streaming\",\"description\":\"Built on top of Suspense, Loading UI allows you to create a fallback for specific route segments, and automatically stream content as it becomes ready.\",\"path\":\"app/building-your-application/routing/loading-ui-and-streaming\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Redirecting\",\"description\":\"Learn the different ways to handle redirects in Next.js.\",\"path\":\"app/building-your-application/routing/redirecting\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Groups\",\"description\":\"Route Groups can be used to partition your Next.js application into different sections.\",\"path\":\"app/building-your-application/routing/route-groups\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Dynamic Routes\",\"description\":\"Dynamic Routes can be used to programmatically generate route segments from dynamic data.\",\"path\":\"app/building-your-application/routing/dynamic-routes\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Parallel Routes\",\"description\":\"Simultaneously render one or more pages in the same view that can be navigated independently. 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completed.\",\"path\":\"app/building-your-application/routing/middleware\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Internationalization\",\"description\":\"Add support for multiple languages with internationalized routing and localized content.\",\"path\":\"app/building-your-application/routing/internationalization\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Data Fetching\",\"description\":\"Learn how to fetch, cache, revalidate, and mutate data with Next.js.\",\"path\":\"app/building-your-application/data-fetching\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Data Fetching and Caching\",\"description\":\"Learn best practices for fetching data on the server or client in Next.js.\",\"path\":\"app/building-your-application/data-fetching/fetching\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Server Actions and Mutations\",\"description\":\"Learn how to handle form submissions and data mutations with Next.js.\",\"path\":\"app/building-your-application/data-fetching/server-actions-and-mutations\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Incremental Static Regeneration (ISR)\",\"description\":\"Learn how to create or update static pages at runtime with Incremental Static Regeneration.\",\"path\":\"app/building-your-application/data-fetching/incremental-static-regeneration\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Rendering\",\"description\":\"Learn the differences between Next.js rendering environments, strategies, and runtimes.\",\"path\":\"app/building-your-application/rendering\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Server Components\",\"description\":\"Learn how you can use React Server Components to render parts of your application on the server.\",\"path\":\"app/building-your-application/rendering/server-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Client Components\",\"description\":\"Learn how to use Client Components to render parts of your application on the client.\",\"path\":\"app/building-your-application/rendering/client-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Composition Patterns\",\"description\":\"Recommended patterns for using Server and Client Components.\",\"path\":\"app/building-your-application/rendering/composition-patterns\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Partial Prerendering\",\"description\":\"Learn how to combine the benefits of static and dynamic rendering with Partial Prerendering.\",\"path\":\"app/building-your-application/rendering/partial-prerendering\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Runtimes\",\"description\":\"Learn about the switchable runtimes (Edge and Node.js) in Next.js.\",\"path\":\"app/building-your-application/rendering/edge-and-nodejs-runtimes\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Caching\",\"description\":\"An overview of caching mechanisms in Next.js.\",\"path\":\"app/building-your-application/caching\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Styling\",\"description\":\"Learn the different ways you can style your Next.js application.\",\"path\":\"app/building-your-application/styling\",\"version\":\"$undefined\",\"children\":[{\"title\":\"CSS\",\"description\":\"Style your Next.js Application with CSS Modules, Global Styles, and external stylesheets.\",\"path\":\"app/building-your-application/styling/css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Tailwind CSS\",\"description\":\"Style your Next.js Application using Tailwind CSS.\",\"path\":\"app/building-your-application/styling/tailwind-css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Sass\",\"description\":\"Style your Next.js application using Sass.\",\"path\":\"app/building-your-application/styling/sass\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"CSS-in-JS\",\"description\":\"Use CSS-in-JS libraries with Next.js\",\"path\":\"app/building-your-application/styling/css-in-js\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Optimizing\",\"description\":\"Optimize your Next.js application for best performance and user experience.\",\"path\":\"app/building-your-application/optimizing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Images\",\"description\":\"Optimize your images with the built-in `next/image` component.\",\"path\":\"app/building-your-application/optimizing/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Videos\",\"description\":\"Recommendations and best practices for optimizing videos in your Next.js application.\",\"path\":\"app/building-your-application/optimizing/videos\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fonts\",\"description\":\"Optimize your application's web fonts with the built-in `next/font` loaders.\",\"path\":\"app/building-your-application/optimizing/fonts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Metadata\",\"description\":\"Use the Metadata API to define metadata in any layout or page.\",\"path\":\"app/building-your-application/optimizing/metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Scripts\",\"description\":\"Optimize 3rd party scripts with the built-in Script component.\",\"path\":\"app/building-your-application/optimizing/scripts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Package Bundling\",\"description\":\"Learn how to optimize your application's server and client bundles.\",\"path\":\"app/building-your-application/optimizing/package-bundling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Lazy Loading\",\"description\":\"Lazy load imported libraries and React Components to improve your application's loading performance.\",\"path\":\"app/building-your-application/optimizing/lazy-loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Analytics\",\"description\":\"Measure and track page performance using Next.js Speed Insights\",\"path\":\"app/building-your-application/optimizing/analytics\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Instrumentation\",\"description\":\"Learn how to use instrumentation to run code at server startup in your Next.js app\",\"path\":\"app/building-your-application/optimizing/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"OpenTelemetry\",\"description\":\"Learn how to instrument your Next.js app with OpenTelemetry.\",\"path\":\"app/building-your-application/optimizing/open-telemetry\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Assets\",\"description\":\"Next.js allows you to serve static files, like images, in the public directory. You can learn how it works here.\",\"path\":\"app/building-your-application/optimizing/static-assets\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Third Party Libraries\",\"description\":\"Optimize the performance of third-party libraries in your application with the `@next/third-parties` package.\",\"path\":\"app/building-your-application/optimizing/third-party-libraries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Memory Usage\",\"description\":\"Optimize memory used by your application in development and production.\",\"path\":\"app/building-your-application/optimizing/memory-usage\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuring\",\"description\":\"Learn how to configure your Next.js application.\",\"path\":\"app/building-your-application/configuring\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Environment Variables\",\"description\":\"Learn to add and access environment variables in your Next.js application.\",\"path\":\"app/building-your-application/configuring/environment-variables\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"MDX\",\"description\":\"Learn how to configure MDX and use it in your Next.js apps.\",\"path\":\"app/building-your-application/configuring/mdx\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"src Directory\",\"description\":\"Save pages under the `src` directory as an alternative to the root `pages` directory.\",\"path\":\"app/building-your-application/configuring/src-directory\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Custom Server\",\"description\":\"Start a Next.js app programmatically using a custom server.\",\"path\":\"app/building-your-application/configuring/custom-server\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Draft Mode\",\"description\":\"Next.js has draft mode to toggle between static and dynamic pages. You can learn how it works with App Router here.\",\"path\":\"app/building-your-application/configuring/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Content Security Policy\",\"description\":\"Learn how to set a Content Security Policy (CSP) for your Next.js application.\",\"path\":\"app/building-your-application/configuring/content-security-policy\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Debugging\",\"description\":\"Learn how to debug your Next.js application with VS Code, Chrome DevTools, or Firefox DevTools.\",\"path\":\"app/building-your-application/configuring/debugging\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Progressive Web Applications (PWA)\",\"description\":\"Learn how to build a Progressive Web Application (PWA) with Next.js.\",\"path\":\"app/building-your-application/configuring/progressive-web-apps\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Testing\",\"description\":\"Learn how to set up Next.js with four commonly used testing tools — Cypress, Playwright, Vitest, and Jest.\",\"path\":\"app/building-your-application/testing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Vitest\",\"description\":\"Learn how to set up Vitest with Next.js for Unit Testing.\",\"path\":\"app/building-your-application/testing/vitest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Jest\",\"description\":\"Learn how to set up Jest with Next.js for Unit Testing and Snapshot Testing.\",\"path\":\"app/building-your-application/testing/jest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Playwright\",\"description\":\"Learn how to set up Playwright with Next.js for End-to-End (E2E) Testing.\",\"path\":\"app/building-your-application/testing/playwright\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Cypress\",\"description\":\"Learn how to set up Cypress with Next.js for End-to-End (E2E) and Component Testing.\",\"path\":\"app/building-your-application/testing/cypress\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Authentication\",\"description\":\"Learn how to implement authentication in your Next.js application.\",\"path\":\"app/building-your-application/authentication\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Deploying\",\"description\":\"Learn how to deploy your Next.js app to production, either managed or self-hosted.\",\"path\":\"app/building-your-application/deploying\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Production Checklist\",\"description\":\"Recommendations to ensure the best performance and user experience before taking your Next.js application to production.\",\"path\":\"app/building-your-application/deploying/production-checklist\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Exports\",\"description\":\"Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server.\",\"path\":\"app/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Multi-Zones\",\"description\":\"Learn how to build micro-frontends using Next.js Multi-Zones to deploy multiple Next.js apps under a single domain.\",\"path\":\"app/building-your-application/deploying/multi-zones\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"app/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"app/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 15\",\"description\":\"Upgrade your Next.js Application from Version 14 to 15.\",\"path\":\"app/building-your-application/upgrading/version-15\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 14\",\"description\":\"Upgrade your Next.js Application from Version 13 to 14.\",\"path\":\"app/building-your-application/upgrading/version-14\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"App Router Migration\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"app/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Create React App\",\"description\":\"Learn how to migrate your existing React application from Create React App to Next.js.\",\"path\":\"app/building-your-application/upgrading/from-create-react-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Vite\",\"description\":\"Learn how to migrate your existing React application from Vite to Next.js.\",\"path\":\"app/building-your-application/upgrading/from-vite\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Examples\",\"description\":\"Examples of popular Next.js UI patterns and use cases.\",\"path\":\"app/building-your-application/examples\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the App Router.\",\"path\":\"app/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Directives\",\"description\":\"Directives are used to modify the behavior of your Next.js application.\",\"path\":\"app/api-reference/directives\",\"version\":\"$undefined\",\"children\":[{\"title\":\"use client\",\"description\":\"Learn how to use the use client directive to render a component on the client.\",\"path\":\"app/api-reference/directives/use-client\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"use server\",\"description\":\"Learn how to use the use server directive to execute code on the server.\",\"path\":\"app/api-reference/directives/use-server\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components.\",\"path\":\"app/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"Optimizing loading web fonts with the built-in `next/font` loaders.\",\"path\":\"app/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cForm\u003e\",\"description\":\"Learn how to use the `\u003cForm\u003e` component to handle form submissions and search params updates with client-side navigation.\",\"path\":\"app/api-reference/components/form\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"app/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"Enable fast client-side navigation with the built-in `next/link` component.\",\"path\":\"app/api-reference/components/link\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cScript\u003e\",\"description\":\"Optimize third-party scripts in your Next.js application using the built-in `next/script` Component.\",\"path\":\"app/api-reference/components/script\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"File Conventions\",\"description\":\"API Reference for Next.js Special Files.\",\"path\":\"app/api-reference/file-conventions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"default.js\",\"description\":\"API Reference for the default.js file.\",\"path\":\"app/api-reference/file-conventions/default\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"error.js\",\"description\":\"API reference for the error.js special file.\",\"path\":\"app/api-reference/file-conventions/error\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"instrumentation.js\",\"description\":\"API reference for the instrumentation.js file.\",\"path\":\"app/api-reference/file-conventions/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"layout.js\",\"description\":\"API reference for the layout.js file.\",\"path\":\"app/api-reference/file-conventions/layout\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"loading.js\",\"description\":\"API reference for the loading.js file.\",\"path\":\"app/api-reference/file-conventions/loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"mdx-components.js\",\"description\":\"API reference for the mdx-components.js file.\",\"path\":\"app/api-reference/file-conventions/mdx-components\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"middleware.js\",\"description\":\"API reference for the middleware.js file.\",\"path\":\"app/api-reference/file-conventions/middleware\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"not-found.js\",\"description\":\"API reference for the not-found.js file.\",\"path\":\"app/api-reference/file-conventions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"page.js\",\"description\":\"API reference for the page.js file.\",\"path\":\"app/api-reference/file-conventions/page\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"route.js\",\"description\":\"API reference for the route.js special file.\",\"path\":\"app/api-reference/file-conventions/route\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Route Segment Config\",\"description\":\"Learn about how to configure options for Next.js route segments.\",\"path\":\"app/api-reference/file-conventions/route-segment-config\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"template.js\",\"description\":\"API Reference for the template.js file.\",\"path\":\"app/api-reference/file-conventions/template\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Metadata Files\",\"description\":\"API documentation for the metadata file conventions.\",\"path\":\"app/api-reference/file-conventions/metadata\",\"version\":\"$undefined\",\"children\":[{\"title\":\"favicon, icon, and apple-icon\",\"description\":\"API Reference for the Favicon, Icon and Apple Icon file conventions.\",\"path\":\"app/api-reference/file-conventions/metadata/app-icons\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"manifest.json\",\"description\":\"API Reference for manifest.json file.\",\"path\":\"app/api-reference/file-conventions/metadata/manifest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"opengraph-image and twitter-image\",\"description\":\"API Reference for the Open Graph Image and Twitter Image file conventions.\",\"path\":\"app/api-reference/file-conventions/metadata/opengraph-image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"robots.txt\",\"description\":\"API Reference for robots.txt file.\",\"path\":\"app/api-reference/file-conventions/metadata/robots\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"sitemap.xml\",\"description\":\"API Reference for the sitemap.xml file.\",\"path\":\"app/api-reference/file-conventions/metadata/sitemap\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Next.js Functions and Hooks.\",\"path\":\"app/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"connection\",\"description\":\"API Reference for the connection function.\",\"path\":\"app/api-reference/functions/connection\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cookies\",\"description\":\"API Reference for the cookies function.\",\"path\":\"app/api-reference/functions/cookies\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"draftMode\",\"description\":\"API Reference for the draftMode function.\",\"path\":\"app/api-reference/functions/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"fetch\",\"description\":\"API reference for the extended fetch function.\",\"path\":\"app/api-reference/functions/fetch\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateImageMetadata\",\"description\":\"Learn how to generate multiple images in a single Metadata API special file.\",\"path\":\"app/api-reference/functions/generate-image-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateMetadata\",\"description\":\"Learn how to add Metadata to your Next.js application for improved search engine optimization (SEO) and web shareability.\",\"path\":\"app/api-reference/functions/generate-metadata\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateSitemaps\",\"description\":\"Learn how to use the generateSiteMaps function to create multiple sitemaps for your application.\",\"path\":\"app/api-reference/functions/generate-sitemaps\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateStaticParams\",\"description\":\"API reference for the generateStaticParams function.\",\"path\":\"app/api-reference/functions/generate-static-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateViewport\",\"description\":\"API Reference for the generateViewport function.\",\"path\":\"app/api-reference/functions/generate-viewport\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"API reference for the headers function.\",\"path\":\"app/api-reference/functions/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ImageResponse\",\"description\":\"API Reference for the ImageResponse constructor.\",\"path\":\"app/api-reference/functions/image-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextRequest\",\"description\":\"API Reference for NextRequest.\",\"path\":\"app/api-reference/functions/next-request\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"NextResponse\",\"description\":\"API Reference for NextResponse.\",\"path\":\"app/api-reference/functions/next-response\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"notFound\",\"description\":\"API Reference for the notFound function.\",\"path\":\"app/api-reference/functions/not-found\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"permanentRedirect\",\"description\":\"API Reference for the permanentRedirect function.\",\"path\":\"app/api-reference/functions/permanentRedirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"redirect\",\"description\":\"API Reference for the redirect function.\",\"path\":\"app/api-reference/functions/redirect\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidatePath\",\"description\":\"API Reference for the revalidatePath function.\",\"path\":\"app/api-reference/functions/revalidatePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"revalidateTag\",\"description\":\"API Reference for the revalidateTag function.\",\"path\":\"app/api-reference/functions/revalidateTag\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"unstable_after\",\"description\":\"API Reference for the after function.\",\"path\":\"app/api-reference/functions/unstable_after\",\"version\":\"unstable\",\"children\":[]},{\"title\":\"unstable_cache\",\"description\":\"API Reference for the unstable_cache function.\",\"path\":\"app/api-reference/functions/unstable_cache\",\"version\":\"legacy\",\"children\":[]},{\"title\":\"unstable_noStore\",\"description\":\"API Reference for the unstable_noStore function.\",\"path\":\"app/api-reference/functions/unstable_noStore\",\"version\":\"legacy\",\"children\":[]},{\"title\":\"unstable_rethrow\",\"description\":\"API Reference for the unstable_rethrow function.\",\"path\":\"app/api-reference/functions/unstable_rethrow\",\"version\":\"unstable\",\"children\":[]},{\"title\":\"useParams\",\"description\":\"API Reference for the useParams hook.\",\"path\":\"app/api-reference/functions/use-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"usePathname\",\"description\":\"API Reference for the usePathname hook.\",\"path\":\"app/api-reference/functions/use-pathname\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useReportWebVitals\",\"description\":\"API Reference for the useReportWebVitals function.\",\"path\":\"app/api-reference/functions/use-report-web-vitals\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useRouter\",\"description\":\"API reference for the useRouter hook.\",\"path\":\"app/api-reference/functions/use-router\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSearchParams\",\"description\":\"API Reference for the useSearchParams hook.\",\"path\":\"app/api-reference/functions/use-search-params\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegment\",\"description\":\"API Reference for the useSelectedLayoutSegment hook.\",\"path\":\"app/api-reference/functions/use-selected-layout-segment\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"useSelectedLayoutSegments\",\"description\":\"API Reference for the useSelectedLayoutSegments hook.\",\"path\":\"app/api-reference/functions/use-selected-layout-segments\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"userAgent\",\"description\":\"The userAgent helper extends the Web Request API with additional properties and methods to interact with the user agent object from the request.\",\"path\":\"app/api-reference/functions/userAgent\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"next.config.js Options\",\"description\":\"Learn how to configure your application with next.config.js.\",\"path\":\"app/api-reference/next-config-js\",\"version\":\"$undefined\",\"children\":[{\"title\":\"appDir\",\"description\":\"Enable the App Router to use layouts, streaming, and more.\",\"path\":\"app/api-reference/next-config-js/appDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"assetPrefix\",\"description\":\"Learn how to use the assetPrefix config option to configure your CDN.\",\"path\":\"app/api-reference/next-config-js/assetPrefix\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"basePath\",\"description\":\"Use `basePath` to deploy a Next.js application under a sub-path of a domain.\",\"path\":\"app/api-reference/next-config-js/basePath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"compress\",\"description\":\"Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here.\",\"path\":\"app/api-reference/next-config-js/compress\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"crossOrigin\",\"description\":\"Use the `crossOrigin` option to add a crossOrigin tag on the `script` tags generated by `next/script`.\",\"path\":\"app/api-reference/next-config-js/crossOrigin\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cssChunking\",\"description\":\"Use the `cssChunking` option to control how CSS files are chunked in your Next.js application.\",\"path\":\"app/api-reference/next-config-js/cssChunking\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"devIndicators\",\"description\":\"Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here.\",\"path\":\"app/api-reference/next-config-js/devIndicators\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"distDir\",\"description\":\"Set a custom build directory to use instead of the default .next directory.\",\"path\":\"app/api-reference/next-config-js/distDir\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"env\",\"description\":\"Learn to add and access environment variables in your Next.js application at build time.\",\"path\":\"app/api-reference/next-config-js/env\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"eslint\",\"description\":\"Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.\",\"path\":\"app/api-reference/next-config-js/eslint\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"expireTime\",\"description\":\"Customize stale-while-revalidate expire time for ISR enabled pages.\",\"path\":\"app/api-reference/next-config-js/expireTime\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"exportPathMap\",\"description\":\"Customize the pages that will be exported as HTML files when using `next export`.\",\"path\":\"app/api-reference/next-config-js/exportPathMap\",\"version\":\"legacy\",\"children\":[]},{\"title\":\"generateBuildId\",\"description\":\"Configure the build id, which is used to identify the current build in which your application is being served.\",\"path\":\"app/api-reference/next-config-js/generateBuildId\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"generateEtags\",\"description\":\"Next.js will generate etags for every page by default. Learn more about how to disable etag generation here.\",\"path\":\"app/api-reference/next-config-js/generateEtags\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"headers\",\"description\":\"Add custom HTTP headers to your Next.js app.\",\"path\":\"app/api-reference/next-config-js/headers\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"httpAgentOptions\",\"description\":\"Next.js will automatically use HTTP Keep-Alive by default. Learn more about how to disable HTTP Keep-Alive here.\",\"path\":\"app/api-reference/next-config-js/httpAgentOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"images\",\"description\":\"Custom configuration for the next/image loader\",\"path\":\"app/api-reference/next-config-js/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"cacheHandler\",\"description\":\"Configure the Next.js cache used for storing and revalidating data to use any external service like Redis, Memcached, or others.\",\"path\":\"app/api-reference/next-config-js/incrementalCacheHandlerPath\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"logging\",\"description\":\"Configure how data fetches are logged to the console when running Next.js in development mode.\",\"path\":\"app/api-reference/next-config-js/logging\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"mdxRs\",\"description\":\"Use the new Rust compiler to compile MDX files in the App Router.\",\"path\":\"app/api-reference/next-config-js/mdxRs\",\"version\":\"experimental.\",\"children\":[]},{\"title\":\"onDemandEntries\",\"description\":\"Configure how Next.js will dispose and keep in memory pages created in development.\",\"path\":\"app/api-reference/next-config-js/onDemandEntries\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"optimizePackageImports\",\"description\":\"API Reference for optimizePackageImports Next.js Config Option\",\"path\":\"app/api-reference/next-config-js/optimizePackageImports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"output\",\"description\":\"Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here.\",\"path\":\"app/api-reference/next-config-js/output\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"pageExtensions\",\"description\":\"Extend the default page extensions used by Next.js when resolving pages in the Pages Router.\",\"path\":\"app/api-reference/next-config-js/pageExtensions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"poweredByHeader\",\"description\":\"Next.js will add the `x-powered-by` header by default. Learn to opt-out of it here.\",\"path\":\"app/api-reference/next-config-js/poweredByHeader\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"ppr\",\"description\":\"Learn how to enable Partial Prerendering in Next.js.\",\"path\":\"app/api-reference/next-config-js/ppr\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"productionBrowserSourceMaps\",\"description\":\"Enables browser source map generation during the production build.\",\"path\":\"app/api-reference/next-config-js/productionBrowserSourceMaps\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"reactCompiler\",\"description\":\"Enable the React Compiler to automatically optimize component rendering.\",\"path\":\"app/api-reference/next-config-js/reactCompiler\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"reactMaxHeadersLength\",\"description\":\"The maximum length of the headers that are emitted by React and added to the response.\",\"path\":\"app/api-reference/next-config-js/reactMaxHeadersLength\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"reactStrictMode\",\"description\":\"The complete Next.js runtime is now Strict Mode-compliant, learn how to opt-in\",\"path\":\"app/api-reference/next-config-js/reactStrictMode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"redirects\",\"description\":\"Add redirects to your Next.js app.\",\"path\":\"app/api-reference/next-config-js/redirects\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"rewrites\",\"description\":\"Add rewrites to your Next.js app.\",\"path\":\"app/api-reference/next-config-js/rewrites\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"sassOptions\",\"description\":\"Configure Sass options.\",\"path\":\"app/api-reference/next-config-js/sassOptions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"serverActions\",\"description\":\"Configure Server Actions behavior in your Next.js application.\",\"path\":\"app/api-reference/next-config-js/serverActions\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"serverComponentsHmrCache\",\"description\":\"Configure whether fetch responses in Server Components are cached across HMR refresh requests.\",\"path\":\"app/api-reference/next-config-js/serverComponentsHmrCache\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"serverExternalPackages\",\"description\":\"Opt-out specific dependencies from the Server Components bundling and use native Node.js `require`.\",\"path\":\"app/api-reference/next-config-js/serverExternalPackages\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"staleTimes\",\"description\":\"Learn how to override the invalidation time of the Client Router Cache.\",\"path\":\"app/api-reference/next-config-js/staleTimes\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"staticGeneration*\",\"description\":\"Learn how to configure static generation in your Next.js application.\",\"path\":\"app/api-reference/next-config-js/staticGeneration\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"trailingSlash\",\"description\":\"Configure Next.js pages to resolve with or without a trailing slash.\",\"path\":\"app/api-reference/next-config-js/trailingSlash\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"transpilePackages\",\"description\":\"Automatically transpile and bundle dependencies from local packages (like monorepos) or from external dependencies (`node_modules`).\",\"path\":\"app/api-reference/next-config-js/transpilePackages\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"turbo\",\"description\":\"Configure Next.js with Turbopack-specific options\",\"path\":\"app/api-reference/next-config-js/turbo\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"typedRoutes\",\"description\":\"Enable experimental support for statically typed links.\",\"path\":\"app/api-reference/next-config-js/typedRoutes\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"typescript\",\"description\":\"Next.js reports TypeScript errors by default. Learn to opt-out of this behavior here.\",\"path\":\"app/api-reference/next-config-js/typescript\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"urlImports\",\"description\":\"Configure Next.js to allow importing modules from external URLs.\",\"path\":\"app/api-reference/next-config-js/urlImports\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"useLightningcss\",\"description\":\"Enable experimental support for Lightning CSS.\",\"path\":\"app/api-reference/next-config-js/useLightningcss\",\"version\":\"experimental\",\"children\":[]},{\"title\":\"webpack\",\"description\":\"Learn how to customize the webpack config used by Next.js\",\"path\":\"app/api-reference/next-config-js/webpack\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"webVitalsAttribution\",\"description\":\"Learn how to use the webVitalsAttribution option to pinpoint the source of Web Vitals issues.\",\"path\":\"app/api-reference/next-config-js/webVitalsAttribution\",\"version\":\"experimental\",\"children\":[]}]},{\"title\":\"CLI\",\"description\":\"API Reference for the Next.js Command Line Interface (CLI) tools.\",\"path\":\"app/api-reference/cli\",\"version\":\"$undefined\",\"children\":[{\"title\":\"create-next-app\",\"description\":\"Create Next.js apps using one command with the create-next-app CLI.\",\"path\":\"app/api-reference/cli/create-next-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"next CLI\",\"description\":\"Learn how to run and build your application with the Next.js CLI.\",\"path\":\"app/api-reference/cli/next\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Edge Runtime\",\"description\":\"API Reference for the Edge Runtime.\",\"path\":\"app/api-reference/edge\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Getting Started\",\"description\":\"Learn how to create full-stack web applications with Next.js with the Pages Router.\",\"path\":\"pages/getting-started\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Installation\",\"description\":\"How to create a new Next.js application with `create-next-app`. 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Learn how to manage your application data in Next.js.\",\"path\":\"pages/building-your-application/data-fetching\",\"version\":\"$undefined\",\"children\":[{\"title\":\"getStaticProps\",\"description\":\"Fetch data and generate static pages with `getStaticProps`. Learn more about this API for data fetching in Next.js.\",\"path\":\"pages/building-your-application/data-fetching/get-static-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getStaticPaths\",\"description\":\"Fetch data and generate static pages with `getStaticPaths`. Learn more about this API for data fetching in Next.js.\",\"path\":\"pages/building-your-application/data-fetching/get-static-paths\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Forms and Mutations\",\"description\":\"Learn how to handle form submissions and data mutations with Next.js.\",\"path\":\"pages/building-your-application/data-fetching/forms-and-mutations\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getServerSideProps\",\"description\":\"Fetch data on each request with `getServerSideProps`.\",\"path\":\"pages/building-your-application/data-fetching/get-server-side-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Incremental Static Regeneration (ISR)\",\"description\":\"Learn how to create or update static pages at runtime with Incremental Static Regeneration.\",\"path\":\"pages/building-your-application/data-fetching/incremental-static-regeneration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Client-side Fetching\",\"description\":\"Learn about client-side data fetching, and how to use SWR, a data fetching React hook library that handles caching, revalidation, focus tracking, refetching on interval and more.\",\"path\":\"pages/building-your-application/data-fetching/client-side\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Styling\",\"description\":\"Learn the different ways you can style your Next.js application.\",\"path\":\"pages/building-your-application/styling\",\"version\":\"$undefined\",\"children\":[{\"title\":\"CSS\",\"description\":\"Style your Next.js Application using CSS.\",\"path\":\"pages/building-your-application/styling/css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Tailwind CSS\",\"description\":\"Style your Next.js Application using Tailwind CSS.\",\"path\":\"pages/building-your-application/styling/tailwind-css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"CSS-in-JS\",\"description\":\"Use CSS-in-JS libraries with Next.js\",\"path\":\"pages/building-your-application/styling/css-in-js\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Sass\",\"description\":\"Learn how to use Sass in your Next.js application.\",\"path\":\"pages/building-your-application/styling/sass\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Optimizing\",\"description\":\"Optimize your Next.js application for best performance and user experience.\",\"path\":\"pages/building-your-application/optimizing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Images\",\"description\":\"Optimize your images with the built-in `next/image` component.\",\"path\":\"pages/building-your-application/optimizing/images\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Fonts\",\"description\":\"Optimize your application's web fonts with the built-in `next/font` loaders.\",\"path\":\"pages/building-your-application/optimizing/fonts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Scripts\",\"description\":\"Optimize 3rd party scripts with the built-in Script component.\",\"path\":\"pages/building-your-application/optimizing/scripts\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Assets\",\"description\":\"Next.js allows you to serve static files, like images, in the public directory. You can learn how it works here.\",\"path\":\"pages/building-your-application/optimizing/static-assets\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Bundling\",\"description\":\"Learn how to optimize your application's server and client bundles.\",\"path\":\"pages/building-your-application/optimizing/package-bundling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Analytics\",\"description\":\"Measure and track page performance using Next.js Speed Insights\",\"path\":\"pages/building-your-application/optimizing/analytics\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Lazy Loading\",\"description\":\"Lazy load imported libraries and React Components to improve your application's overall loading performance.\",\"path\":\"pages/building-your-application/optimizing/lazy-loading\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Instrumentation\",\"description\":\"Learn how to use instrumentation to run code at server startup in your Next.js app\",\"path\":\"pages/building-your-application/optimizing/instrumentation\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"OpenTelemetry\",\"description\":\"Learn how to instrument your Next.js app with OpenTelemetry.\",\"path\":\"pages/building-your-application/optimizing/open-telemetry\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Third Party Libraries\",\"description\":\"Optimize the performance of third-party libraries in your application with the `@next/third-parties` package.\",\"path\":\"pages/building-your-application/optimizing/third-party-libraries\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Configuring\",\"description\":\"Learn how to configure your Next.js application.\",\"path\":\"pages/building-your-application/configuring\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Environment Variables\",\"description\":\"Learn to add and access environment variables in your Next.js application.\",\"path\":\"pages/building-your-application/configuring/environment-variables\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"src Directory\",\"description\":\"Save pages under the `src` directory as an alternative to the root `pages` directory.\",\"path\":\"pages/building-your-application/configuring/src-directory\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"MDX\",\"description\":\"Learn how to configure MDX to write JSX in your markdown files.\",\"path\":\"pages/building-your-application/configuring/mdx\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"AMP\",\"description\":\"With minimal config, and without leaving React, you can start adding AMP and improve the performance and speed of your pages.\",\"path\":\"pages/building-your-application/configuring/amp\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Babel\",\"description\":\"Extend the babel preset added by Next.js with your own configs.\",\"path\":\"pages/building-your-application/configuring/babel\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"PostCSS\",\"description\":\"Extend the PostCSS config and plugins added by Next.js with your own.\",\"path\":\"pages/building-your-application/configuring/post-css\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Custom Server\",\"description\":\"Start a Next.js app programmatically using a custom server.\",\"path\":\"pages/building-your-application/configuring/custom-server\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Draft Mode\",\"description\":\"Next.js has draft mode to toggle between static and dynamic pages. You can learn how it works with Pages Router.\",\"path\":\"pages/building-your-application/configuring/draft-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Error Handling\",\"description\":\"Handle errors in your Next.js app.\",\"path\":\"pages/building-your-application/configuring/error-handling\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Preview Mode\",\"description\":\"Next.js has the preview mode for statically generated pages. You can learn how it works here.\",\"path\":\"pages/building-your-application/configuring/preview-mode\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Content Security Policy\",\"description\":\"Learn how to set a Content Security Policy (CSP) for your Next.js application.\",\"path\":\"pages/building-your-application/configuring/content-security-policy\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Debugging\",\"description\":\"Learn how to debug your Next.js application with VS Code or Chrome DevTools.\",\"path\":\"pages/building-your-application/configuring/debugging\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Testing\",\"description\":\"Learn how to set up Next.js with three commonly used testing tools — Cypress, Playwright, Vitest, and Jest.\",\"path\":\"pages/building-your-application/testing\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Vitest\",\"description\":\"Learn how to set up Next.js with Vitest and React Testing Library - two popular unit testing libraries.\",\"path\":\"pages/building-your-application/testing/vitest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Jest\",\"description\":\"Learn how to set up Next.js with Jest for Unit Testing.\",\"path\":\"pages/building-your-application/testing/jest\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Playwright\",\"description\":\"Learn how to set up Next.js with Playwright for End-to-End (E2E) and Integration testing.\",\"path\":\"pages/building-your-application/testing/playwright\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Cypress\",\"description\":\"Learn how to set up Next.js with Cypress for End-to-End (E2E) and Component Testing.\",\"path\":\"pages/building-your-application/testing/cypress\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Authentication\",\"description\":\"Learn how to implement authentication in Next.js, covering best practices, securing routes, authorization techniques, and session management.\",\"path\":\"pages/building-your-application/authentication\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Deploying\",\"description\":\"Learn how to deploy your Next.js app to production, either managed or self-hosted.\",\"path\":\"pages/building-your-application/deploying\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Production Checklist\",\"description\":\"Recommendations to ensure the best performance and user experience before taking your Next.js application to production.\",\"path\":\"pages/building-your-application/deploying/production-checklist\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Static Exports\",\"description\":\"Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server.\",\"path\":\"pages/building-your-application/deploying/static-exports\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Multi-Zones\",\"description\":\"Learn how to build micro-frontends using Next.js Multi-Zones to deploy multiple Next.js apps under a single domain.\",\"path\":\"pages/building-your-application/deploying/multi-zones\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Continuous Integration (CI) Build Caching\",\"description\":\"Learn how to configure CI to cache Next.js builds\",\"path\":\"pages/building-your-application/deploying/ci-build-caching\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Upgrading\",\"description\":\"Learn how to upgrade to the latest versions of Next.js.\",\"path\":\"pages/building-your-application/upgrading\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Codemods\",\"description\":\"Use codemods to upgrade your Next.js codebase when new features are released.\",\"path\":\"pages/building-your-application/upgrading/codemods\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"From Pages to App\",\"description\":\"Learn how to upgrade your existing Next.js application from the Pages Router to the App Router.\",\"path\":\"pages/building-your-application/upgrading/app-router-migration\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Vite\",\"description\":\"Learn how to migrate your existing React application from Vite to Next.js.\",\"path\":\"pages/building-your-application/upgrading/from-vite\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Migrating from Create React App\",\"description\":\"Learn how to migrate your existing React application from Create React App to Next.js.\",\"path\":\"pages/building-your-application/upgrading/from-create-react-app\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 14\",\"description\":\"Upgrade your Next.js Application from Version 13 to 14.\",\"path\":\"pages/building-your-application/upgrading/version-14\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 13\",\"description\":\"Upgrade your Next.js Application from Version 12 to 13.\",\"path\":\"pages/building-your-application/upgrading/version-13\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 12\",\"description\":\"Upgrade your Next.js Application from Version 11 to Version 12.\",\"path\":\"pages/building-your-application/upgrading/version-12\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 11\",\"description\":\"Upgrade your Next.js Application from Version 10 to Version 11.\",\"path\":\"pages/building-your-application/upgrading/version-11\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 10\",\"description\":\"Upgrade your Next.js Application from Version 9 to Version 10.\",\"path\":\"pages/building-your-application/upgrading/version-10\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"Version 9\",\"description\":\"Upgrade your Next.js Application from Version 8 to Version 9.\",\"path\":\"pages/building-your-application/upgrading/version-9\",\"version\":\"$undefined\",\"children\":[]}]}]},{\"title\":\"API Reference\",\"description\":\"Next.js API Reference for the Pages Router.\",\"path\":\"pages/api-reference\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Components\",\"description\":\"API Reference for Next.js built-in components in the Pages Router.\",\"path\":\"pages/api-reference/components\",\"version\":\"$undefined\",\"children\":[{\"title\":\"Font\",\"description\":\"API Reference for the Font Module\",\"path\":\"pages/api-reference/components/font\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cForm\u003e\",\"description\":\"Learn how to use the `\u003cForm\u003e` component to handle form submissions and search params updates with client-side navigation.\",\"path\":\"pages/api-reference/components/form\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cHead\u003e\",\"description\":\"Add custom elements to the `head` of your page with the built-in Head component.\",\"path\":\"pages/api-reference/components/head\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e\",\"description\":\"Optimize Images in your Next.js Application using the built-in `next/image` Component.\",\"path\":\"pages/api-reference/components/image\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cImage\u003e (Legacy)\",\"description\":\"Backwards compatible Image Optimization with the Legacy Image component.\",\"path\":\"pages/api-reference/components/image-legacy\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cLink\u003e\",\"description\":\"API reference for the \u003cLink\u003e component.\",\"path\":\"pages/api-reference/components/link\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"\u003cScript\u003e\",\"description\":\"Optimize third-party scripts in your Next.js application using the built-in `next/script` Component.\",\"path\":\"pages/api-reference/components/script\",\"version\":\"$undefined\",\"children\":[]}]},{\"title\":\"Functions\",\"description\":\"API Reference for Functions and Hooks in Pages Router.\",\"path\":\"pages/api-reference/functions\",\"version\":\"$undefined\",\"children\":[{\"title\":\"getInitialProps\",\"description\":\"Fetch dynamic data on the server for your React component with getInitialProps.\",\"path\":\"pages/api-reference/functions/get-initial-props\",\"version\":\"$undefined\",\"children\":[]},{\"title\":\"getServerSideProps\",\"description\":\"API reference for `getServerSideProps`. 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