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1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="19"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Bindings (env)</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/bindings/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers-ai/get-started/workers-wrangler/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#2-connect-your-worker-to-workers-ai" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">AI ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/analytics/analytics-engine?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Analytics Engine ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/static-assets/binding/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Assets ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/browser-rendering?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Browser Rendering ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/d1/build-with-d1/d1-client-api/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">D1 ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/cloudflare-for-platforms/workers-for-platforms/get-started/configuration/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Dispatcher (Workers for Platforms) ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/durable-objects/api/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Durable Objects ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/configuration/environment-variables/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Environment Variables ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/hyperdrive?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Hyperdrive ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/kv/api/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">KV ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/bindings/mtls/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">mTLS</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/queues/configuration/javascript-apis/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Queues ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/r2/api/workers/workers-api-reference/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">R2 ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/bindings/rate-limit/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Rate Limiting</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Beta</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/configuration/secrets/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Secrets ↗</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="37"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Service bindings</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/bindings/service-bindings/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/bindings/service-bindings/http/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">HTTP</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/bindings/service-bindings/rpc/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">RPC (WorkerEntrypoint)</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/observability/logs/tail-workers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Tail Workers ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/vectorize/reference/client-api/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Vectorize ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/bindings/version-metadata/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Version metadata</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Beta</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workflows/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Workflows ↗</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/cache/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Cache</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/console/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Console</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/context/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Context (ctx)</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/encoding/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Encoding</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/eventsource/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">EventSource</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/fetch/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Fetch</span> </a></li> <li class="astro-3ii7xxms"> <details open class="astro-3ii7xxms"><sl-sidebar-restore data-index="20"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Handlers</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/durable-objects/api/alarms/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Alarm Handler ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/email-routing/email-workers/runtime-api/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Email Handler ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/fetch/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Fetch Handler</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/queues/configuration/javascript-apis/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#consumer" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Queue Handler ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/scheduled/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Scheduled Handler</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" aria-current="page" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Tail Handler</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/headers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Headers</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/html-rewriter/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">HTMLRewriter</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="21"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Node.js compatibility</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/assert/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">assert</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/asynclocalstorage/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">AsyncLocalStorage</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/buffer/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Buffer</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/crypto/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Crypto</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/diagnostics-channel/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Diagnostics Channel</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/eventemitter/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">EventEmitter</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/path/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">path</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/process/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">process</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/streams/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Streams</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/string-decoder/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">StringDecoder</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/test/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">test</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/url/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">url</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/util/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">util</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/nodejs/zlib/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">zlib</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/performance/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Performance and timers</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="22"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Remote-procedure call (RPC)</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/rpc/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/rpc/lifecycle/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Lifecycle</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/rpc/reserved-methods/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Reserved Methods</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/rpc/visibility/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Visibility and Security Model</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/rpc/typescript/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">TypeScript</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/rpc/error-handling/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Error handling</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/request/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Request</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/response/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Response</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="23"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Streams</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/streams/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/streams/readablestream/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">ReadableStream</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/streams/readablestreambyobreader/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">ReadableStream BYOBReader</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/streams/readablestreamdefaultreader/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">ReadableStream DefaultReader</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/streams/transformstream/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">TransformStream</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/streams/writablestream/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">WritableStream</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/streams/writablestreamdefaultwriter/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">WritableStream DefaultWriter</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/tcp-sockets/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">TCP sockets</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/web-crypto/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Web Crypto</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/web-standards/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Web standards</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="24"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">WebAssembly (Wasm)</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/webassembly/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/webassembly/javascript/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Wasm in JavaScript</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/websockets/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">WebSockets</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="4"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Static Assets</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Beta</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/static-assets/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/static-assets/get-started/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Get Started</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/static-assets/binding/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Configuration and binding</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/static-assets/routing/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Routing</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/static-assets/compatibility-matrix/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Workers vs. Pages (compatibility matrix)</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/static-assets/direct-upload/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Direct Uploads</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="5"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Frameworks</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Beta</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="25"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Framework guides</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/angular/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Angular</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/astro/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Astro</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/docusaurus/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Docusaurus</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/gatsby/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Gatsby</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/nextjs/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Next.js</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/nuxt/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Nuxt</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/qwik/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Qwik</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/remix/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Remix</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/solid/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Solid</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/frameworks/framework-guides/svelte/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Svelte</span> </a></li> </ul> </details></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="6"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Databases</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/connecting-to-databases/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Connect to databases</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/analytics/analytics-engine/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Analytics Engine ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/vectorize/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Vectorize (vector database) ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/d1/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Cloudflare D1 ↗</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/hyperdrive/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Hyperdrive ↗</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="26"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Database Integrations</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Beta</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/fauna/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Fauna</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/neon/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Neon</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/planetscale/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">PlanetScale</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/supabase/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Supabase</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/turso/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Turso</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/upstash/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Upstash</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/databases/native-integrations/xata/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Xata</span> </a></li> </ul> </details></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="7"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Testing</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/testing/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/testing/local-development/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Local development</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/testing/unit-testing/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Unit testing</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/testing/integration-testing/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" 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<li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/observability/integrations/sentry/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Sentry</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Beta</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/observability/metrics-and-analytics/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Metrics and analytics</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/observability/source-maps/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Source maps and stack traces</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Beta</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="9"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Wrangler</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/install-and-update/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Install/Update Wrangler</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/api/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">API</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/bundling/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Bundling</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/commands/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Commands</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/configuration/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Configuration</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/custom-builds/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Custom builds</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/deprecations/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Deprecations</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/environments/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Environments</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="31"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Migrations</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="39"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Migrate from Wrangler v1 to v2</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/migration/v1-to-v2/eject-webpack/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">1. Migrate webpack projects</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/workers/wrangler/migration/v1-to-v2/update-v1-to-v2/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">2. 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e=t.getBoundingClientRect(),n=this.#y(t),i=n?window.innerWidth:t.naturalWidth,r=n?window.innerHeight:t.naturalHeight,d=Math.min(window.innerWidth,i),s=Math.min(window.innerHeight,r),l=Math.min(d/i,s/r),a=(n?window.innerWidth:t.naturalWidth)*l,c=(n?window.innerHeight:t.naturalHeight)*l,h=(window.innerHeight-c)/2,u=(window.innerWidth-a)/2,o=t.cloneNode(!0);o.removeAttribute("id"),o.style.position="absolute",o.style.width=`${a}px`,o.style.height=`${c}px`,o.style.top=`${h}px`,o.style.left=`${u}px`,o.style.transform="";const m=e.width/a,p=e.height/c,g=(-u+(e.width-a)/2+e.left)/m,v=(-h+(e.height-c)/2+e.top)/p;return o.style.transform=`scale(${m}, ${p}) translate3d(${g}px, ${v}px, 0)`,o.dataset[this.#r]=o.style.transform,t.parentElement?.tagName==="PICTURE"&&t.currentSrc&&(o.src=t.currentSrc),o}#y(t){return t.currentSrc.toLowerCase().endsWith(".svg")}});</script> <div class="sl-markdown-content astro-cedpceuv"> <div tabindex="-1" class="heading-wrapper level-h2"> <h2 id="background">Background</h2><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#background"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <p>The <code dir="auto">tail()</code> handler is the handler you implement when writing a <a href="https://developers-cloudflare-com.translate.goog/workers/observability/logs/tail-workers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">Tail Worker</a>. Tail Workers can be used to process logs in real-time and send them to a logging or analytics service.</p> <p>The <code dir="auto">tail()</code> handler is called once each time the connected producer Worker is invoked.</p> <p>To configure a Tail Worker, refer to <a href="https://developers-cloudflare-com.translate.goog/workers/observability/logs/tail-workers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">Tail Workers documentation</a>.</p> <div tabindex="-1" class="heading-wrapper level-h2"> <h2 id="syntax">Syntax</h2><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#syntax"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame not-content"> <figcaption class="header"></figcaption> <pre data-language="js"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EE9080;--1:#8F1500">export</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">default</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">async</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">tail</span><span style="--0:#89DDFF;--1:#007474">(</span><span style="--0:#B59EE1;--1:#7C008F">events</span><span style="--0:#89DDFF;--1:#007474">,</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#B59EE1;--1:#7C008F">env</span><span style="--0:#89DDFF;--1:#007474">,</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#B59EE1;--1:#7C008F">ctx</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#FDDA68;--1:#A84E00">"<YOUR_ENDPOINT>"</span><span style="--0:#89DDFF;--1:#007474">,</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#EEFFFF;--1:#62676A"> </span></span><span style="--0:#EEFFFF;--1:#62676A">method</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">"POST"</span><span style="--0:#89DDFF;--1:#007474">,</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#EEFFFF;--1:#62676A"> </span></span><span style="--0:#EEFFFF;--1:#62676A">body</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EEFFFF;--1:#00268F">JSON</span><span style="--0:#89DDFF;--1:#007474">.</span><span style="--0:#57C78F;--1:#00783C">stringify</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#D5D7D8;--1:#8F1500">events</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">,</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">}</span><span style="--0:#EEFFFF;--1:#62676A">)</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">}</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#89DDFF;--1:#007474">}</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="export default { async tail(events, env, ctx) { fetch("<YOUR_ENDPOINT>", { method: "POST", body: JSON.stringify(events), }) }}"> <div></div></button> </div> </figure> </div> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="parameters">Parameters</h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#parameters"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">events</code> array</p> <ul> <li>An array of <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailitems"><code dir="auto">TailItems</code></a>. One <code dir="auto">TailItem</code> is collected for each event that triggers a Worker. For Workers for Platforms customers with a Tail Worker installed on the dynamic dispatch Worker, <code dir="auto">events</code> will contain two elements: one for the dynamic dispatch Worker and one for the User Worker.</li> </ul></li> <li><p><code dir="auto">env</code> object</p> <ul> <li>An object containing the bindings associated with your Worker using <a href="https://developers-cloudflare-com.translate.goog/workers/reference/migrate-to-module-workers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">ES modules format</a>, such as KV namespaces and Durable Objects.</li> </ul></li> <li><p><code dir="auto">ctx</code> object</p> <ul> <li>An object containing the context associated with your Worker using <a href="https://developers-cloudflare-com.translate.goog/workers/reference/migrate-to-module-workers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">ES modules format</a>. Currently, this object just contains the <code dir="auto">waitUntil</code> function.</li> </ul></li> </ul> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="properties">Properties</h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#properties"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">event.type</code> string</p> <ul> <li>The type of event. This will always return <code dir="auto">"tail"</code>.</li> </ul></li> <li><p><code dir="auto">event.traces</code> array</p> <ul> <li>An array of <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailitems"><code dir="auto">TailItems</code></a>. One <code dir="auto">TailItem</code> is collected for each event that triggers a Worker. For Workers for Platforms customers with a Tail Worker installed on the dynamic dispatch Worker, <code dir="auto">events</code> will contain two elements: one for the dynamic dispatch Worker and one for the user Worker.</li> </ul></li> <li><p><code>event.waitUntil(promisePromise)</code> : void</p> <ul> <li>Refer to <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/context/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#waituntil"><code dir="auto">waitUntil</code></a>. Note that unlike fetch event handlers, tail handlers do not return a value, so this is the only way for trace Workers to do asynchronous work.</li> </ul></li> </ul> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="tailitems"><code dir="auto">TailItems</code></h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailitems"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <div tabindex="-1" class="heading-wrapper level-h4"> <h4 id="properties-1">Properties</h4><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#properties-1"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">scriptName</code> string</p> <ul> <li>The name of the producer script.</li> </ul></li> <li><p><code dir="auto">event</code> object</p> <ul> <li>Contains information about the Worker’s triggering event. <ul> <li>For fetch events: a <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#fetcheventinfo"><code dir="auto">FetchEventInfo</code> object</a></li> <li>For other event types: <code dir="auto">null</code>, currently.</li> </ul></li> </ul></li> <li><p><code dir="auto">eventTimestamp</code> number</p> <ul> <li>Measured in epoch time.</li> </ul></li> <li><p><code dir="auto">logs</code> array</p> <ul> <li>An array of <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#taillog">TailLogs</a>.</li> </ul></li> <li><p><code dir="auto">exceptions</code> array</p> <ul> <li>An array of <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailexception"><code dir="auto">TailExceptions</code></a>. A single Worker invocation might result in multiple unhandled exceptions, since a Worker can register multiple asynchronous tasks.</li> </ul></li> <li><p><code dir="auto">outcome</code> string</p> <ul> <li>The outcome of the Worker invocation, one of: <ul> <li><code dir="auto">unknown</code>: outcome status was not set.</li> <li><code dir="auto">ok</code>: The worker invocation succeeded.</li> <li><code dir="auto">exception</code>: An unhandled exception was thrown. This can happen for many reasons, including: <ul> <li>An uncaught JavaScript exception.</li> <li>A fetch handler that does not result in a Response.</li> <li>An internal error.</li> </ul></li> <li><code dir="auto">exceededCpu</code>: The Worker invocation exceeded either its CPU limits.</li> <li><code dir="auto">exceededMemory</code>: The Worker invocation exceeded memory limits.</li> <li><code dir="auto">scriptNotFound</code>: An internal error from difficulty retrieving the Worker script.</li> <li><code dir="auto">canceled</code>: The worker invocation was canceled before it completed. Commonly because the client disconnected before a response could be sent.</li> </ul></li> </ul></li> </ul> <aside aria-label="Outcome is not the same as HTTP status." class="starlight-aside starlight-aside--note"> <p class="starlight-aside__title" aria-hidden="true"> <svg viewbox="0 0 24 24" width="16" height="16" fill="currentColor" class="starlight-aside__icon"> <path d="M12 11C11.7348 11 11.4804 11.1054 11.2929 11.2929C11.1054 11.4804 11 11.7348 11 12V16C11 16.2652 11.1054 16.5196 11.2929 16.7071C11.4804 16.8946 11.7348 17 12 17C12.2652 17 12.5196 16.8946 12.7071 16.7071C12.8946 16.5196 13 16.2652 13 16V12C13 11.7348 12.8946 11.4804 12.7071 11.2929C12.5196 11.1054 12.2652 11 12 11ZM12.38 7.08C12.1365 6.97998 11.8635 6.97998 11.62 7.08C11.4973 7.12759 11.3851 7.19896 11.29 7.29C11.2017 7.3872 11.1306 7.49882 11.08 7.62C11.024 7.73868 10.9966 7.86882 11 8C10.9992 8.13161 11.0245 8.26207 11.0742 8.38391C11.124 8.50574 11.1973 8.61656 11.29 8.71C11.3872 8.79833 11.4988 8.86936 11.62 8.92C11.7715 8.98224 11.936 9.00632 12.099 8.99011C12.2619 8.97391 12.4184 8.91792 12.5547 8.82707C12.691 8.73622 12.8029 8.61328 12.8805 8.46907C12.9582 8.32486 12.9992 8.16378 13 8C12.9963 7.73523 12.8927 7.48163 12.71 7.29C12.6149 7.19896 12.5028 7.12759 12.38 7.08ZM12 2C10.0222 2 8.08879 2.58649 6.4443 3.6853C4.79981 4.78412 3.51809 6.3459 2.76121 8.17317C2.00433 10.0004 1.8063 12.0111 2.19215 13.9509C2.578 15.8907 3.53041 17.6725 4.92894 19.0711C6.32746 20.4696 8.10929 21.422 10.0491 21.8079C11.9889 22.1937 13.9996 21.9957 15.8268 21.2388C17.6541 20.4819 19.2159 19.2002 20.3147 17.5557C21.4135 15.9112 22 13.9778 22 12C22 10.6868 21.7413 9.38642 21.2388 8.17317C20.7363 6.95991 19.9997 5.85752 19.0711 4.92893C18.1425 4.00035 17.0401 3.26375 15.8268 2.7612C14.6136 2.25866 13.3132 2 12 2ZM12 20C10.4178 20 8.87104 19.5308 7.55544 18.6518C6.23985 17.7727 5.21447 16.5233 4.60897 15.0615C4.00347 13.5997 3.84504 11.9911 4.15372 10.4393C4.4624 8.88743 5.22433 7.46197 6.34315 6.34315C7.46197 5.22433 8.88743 4.4624 10.4393 4.15372C11.9911 3.84504 13.5997 4.00346 15.0615 4.60896C16.5233 5.21447 17.7727 6.23984 18.6518 7.55544C19.5308 8.87103 20 10.4177 20 12C20 14.1217 19.1572 16.1566 17.6569 17.6569C16.1566 19.1571 14.1217 20 12 20Z" /> </svg>Outcome is not the same as HTTP status.</p> <div class="starlight-aside__content"> <p>Outcome is equivalent to the exit status of a script and an indicator of whether it has fully run to completion. A Worker outcome may differ from a response code if, for example:</p> <ul> <li>a script successfully processes a request but is logically designed to return a <code dir="auto">4xx</code>/<code dir="auto">5xx</code> response.</li> <li>a script sends a successful <code dir="auto">200</code> response but an asynchronous task registered via <code dir="auto">waitUntil()</code> later exceeds CPU or memory limits.</li> </ul> </div> </aside> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="fetcheventinfo"><code dir="auto">FetchEventInfo</code></h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#fetcheventinfo"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <div tabindex="-1" class="heading-wrapper level-h4"> <h4 id="properties-2">Properties</h4><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#properties-2"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">request</code> object</p> <ul> <li>A <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailrequest"><code dir="auto">TailRequest</code> object</a>.</li> </ul></li> <li><p><code dir="auto">response</code> object</p> <ul> <li>A <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailresponse"><code dir="auto">TailResponse</code> object</a>.</li> </ul></li> </ul> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="tailrequest"><code dir="auto">TailRequest</code></h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailrequest"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <div tabindex="-1" class="heading-wrapper level-h4"> <h4 id="properties-3">Properties</h4><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#properties-3"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">cf</code> object</p> <ul> <li>Contains the data from <a href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/request/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#incomingrequestcfproperties"><code dir="auto">IncomingRequestCfProperties</code></a>.</li> </ul></li> <li><p><code dir="auto">headers</code> object</p> <ul> <li>Header name/value entries (redacted by default). Header names are lowercased, and the values associated with duplicate header names are concatenated, with the string <code dir="auto">", "</code> (comma space) interleaved, similar to <a href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://fetch.spec.whatwg.org/%23concept-header-list-get" target="_blank" rel="noopener">the Fetch standard<span> ↗</span></a>.</li> </ul></li> <li><p><code dir="auto">method</code> string</p> <ul> <li>The HTTP request method.</li> </ul></li> <li><p><code dir="auto">url</code> string</p> <ul> <li>The HTTP request URL (redacted by default).</li> </ul></li> </ul> <div tabindex="-1" class="heading-wrapper level-h4"> <h4 id="methods">Methods</h4><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#methods"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">getUnredacted()</code> object</p> <ul> <li>Returns a TailRequest object with unredacted properties</li> </ul></li> </ul> <p>Some of the properties of <code dir="auto">TailRequest</code> are redacted by default to make it harder to accidentally record sensitive information, like user credentials or API tokens. The redactions use heuristic rules, so they are subject to false positives and negatives. Clients can call <code dir="auto">getUnredacted()</code> to bypass redaction, but they should always be careful about what information is retained, whether using the redaction or not.</p> <ul> <li>Header redaction: The header value will be the string <code dir="auto">“REDACTED”</code> when the (case-insensitive) header name is <code dir="auto">cookie</code>/<code dir="auto">set-cookie</code> or contains a substring <code dir="auto">"auth”</code>, <code dir="auto">“key”</code>, <code dir="auto">“secret”</code>, <code dir="auto">“token”</code>, or <code dir="auto">"jwt"</code>.</li> <li>URL redaction: For each greedily matched substring of ID characters (a-z, A-Z, 0-9, '+', '-', '_') in the URL, if it meets the following criteria for a hex or base-64 ID, the substring will be replaced with the string <code dir="auto">“REDACTED”</code>.</li> <li>Hex ID: Contains 32 or more hex digits, and contains only hex digits and separators ('+', '-', '_')</li> <li>Base-64 ID: Contains 21 or more characters, and contains at least two uppercase, two lowercase, and two digits.</li> </ul> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="tailresponse"><code dir="auto">TailResponse</code></h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailresponse"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <div tabindex="-1" class="heading-wrapper level-h4"> <h4 id="properties-4">Properties</h4><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#properties-4"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">status</code> number</p> <ul> <li>The HTTP status code.</li> </ul></li> </ul> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="taillog"><code dir="auto">TailLog</code></h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#taillog"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <p>Records information sent to console functions.</p> <div tabindex="-1" class="heading-wrapper level-h4"> <h4 id="properties-5">Properties</h4><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#properties-5"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">timestamp</code> number</p> <ul> <li>Measured in epoch time.</li> </ul></li> <li><p><code dir="auto">level</code> string</p> <ul> <li>A string indicating the console function that was called. One of: <code dir="auto">debug</code>, <code dir="auto">info</code>, <code dir="auto">log</code>, <code dir="auto">warn</code>, <code dir="auto">error</code>.</li> </ul></li> <li><p><code dir="auto">message</code> object</p> <ul> <li>The array of parameters passed to the console function.</li> </ul></li> </ul> <div tabindex="-1" class="heading-wrapper level-h3"> <h3 id="tailexception"><code dir="auto">TailException</code></h3><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tailexception"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <p>Records an unhandled exception that occurred during the Worker invocation.</p> <div tabindex="-1" class="heading-wrapper level-h4"> <h4 id="properties-6">Properties</h4><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#properties-6"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><p><code dir="auto">timestamp</code> number</p> <ul> <li>Measured in epoch time.</li> </ul></li> <li><p><code dir="auto">name</code> string</p> <ul> <li>The error type (For example,<code dir="auto">Error</code>, <code dir="auto">TypeError</code>, etc.).</li> </ul></li> <li><p><code dir="auto">message</code> object</p> <ul> <li>The error description (For example, <code dir="auto">"x" is not a function</code>).</li> </ul></li> </ul> <div tabindex="-1" class="heading-wrapper level-h2"> <h2 id="related-resources">Related resources</h2><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/workers/runtime-apis/handlers/tail/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#related-resources"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <ul> <li><a href="https://developers-cloudflare-com.translate.goog/workers/observability/logs/tail-workers/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">Tail Workers</a> - Configure a Tail Worker to receive information about the execution of other Workers.</li> </ul> <div class="feedback-prompt-content astro-cedpceuv"><feedback-prompt class="not-content astro-x6kpz2mu"> <div id="feedback-thumbs" class="astro-x6kpz2mu"> <h2 class="astro-x6kpz2mu">Was this helpful?</h2> <div class="not-content astro-x6kpz2mu"> <svg 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