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Authorize access to user data on Android | Authorization | Google for Developers
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</a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Authentication" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/authentication" track-metadata-position="nav - authentication" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Sign In with Google SDKs</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/android-credential-manager" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Credential Manager for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/gsi/web/guides/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/gsi/web/guides/overview" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Sign In with Google for Web (including One Tap) </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/ios/start" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/start" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for iOS and macOS </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Industry standards</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/passkeys" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/passkeys" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Passkeys </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/openid-connect/openid-connect" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/openid-connect/openid-connect" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> OpenID Connect </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Legacy Sign In</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/one-tap/android/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/one-tap/android/overview" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> One Tap sign-up/sign-in for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/android/legacy-start-integrating" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/android/legacy-start-integrating" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/web/sign-in" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/web/sign-in" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for Web </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown devsite-active "> <a href="https://developers.google.com/identity/authorization" track-metadata-eventdetail="https://developers.google.com/identity/authorization" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - authorization" track-metadata-module="primary nav" aria-label="Authorization, selected" data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" > Authorization </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Authorization" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/authorization" track-metadata-position="nav - authorization" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Call Google APIs</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/android/authorize-access" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/android/authorize-access" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/oauth2/web/guides/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/oauth2/web/guides/overview" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for Web </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/ios/api-access" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/api-access" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for iOS/macOS </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/protocols/oauth2" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/protocols/oauth2" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Using OAuth 2.0 </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Share data with Google apps and devices</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/account-linking" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/account-linking" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Google Account Linking </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/credential-management" track-metadata-eventdetail="https://developers.google.com/identity/credential-management" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - credential management" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" > Credential management </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Credential management" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-management" track-metadata-position="nav - credential management" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Android</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/android-credential-manager" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Credential Manager </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/blockstore/android" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/blockstore/android" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Blockstore </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/smartlock-passwords/android/associate-apps-and-sites" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/smartlock-passwords/android/associate-apps-and-sites" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Digital Asset Links </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developer.android.com/guide/topics/text/autofill" track-type="nav" track-metadata-eventdetail="https://developer.android.com/guide/topics/text/autofill" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Android autofill framework </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/sign-in-form-best-practices/" track-type="nav" track-metadata-eventdetail="https://web.dev/sign-in-form-best-practices/" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Autocomplete </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Cross-platform</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/credential-sharing" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-sharing" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Seamless credential sharing </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/credential-verification" track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" > Credential verification </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Credential verification" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Android</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sms-retriever/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sms-retriever/overview" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify users by SMS </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/phone-number-hint/android" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/phone-number-hint/android" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Phone Number Hint </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/web-otp/" track-type="nav" track-metadata-eventdetail="https://web.dev/web-otp/" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify phone numbers on the web </div> </a> </li> </ul> </div> </div> </div> </tab> </nav> </devsite-tabs> </div> <devsite-search enable-signin enable-search enable-suggestions enable-query-completion project-name="Authorization" tenant-name="Google for Developers" project-scope="/identity/authorization" url-scoped="https://developers.google.com/s/results/identity/authorization" > <form class="devsite-search-form" action="https://developers.google.com/s/results" method="GET"> <div class="devsite-search-container"> <button type="button" search-open class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Open search"></button> <div class="devsite-searchbox"> <input aria-activedescendant="" aria-autocomplete="list" aria-label="Search" aria-expanded="false" aria-haspopup="listbox" autocomplete="off" class="devsite-search-field devsite-search-query" name="q" placeholder="Search" role="combobox" type="text" value="" > <div class="devsite-search-image material-icons" aria-hidden="true"> </div> <div class="devsite-search-shortcut-icon-container" aria-hidden="true"> <kbd class="devsite-search-shortcut-icon">/</kbd> </div> </div> </div> </form> <button type="button" search-close class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Close search"></button> </devsite-search> </div> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es" >Español</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pl" >Polski</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="vi" >Tiếng Việt</a> </li> <li role="presentation"> <a role="menuitem" lang="tr" >Türkçe</a> </li> <li role="presentation"> <a role="menuitem" lang="ru" >Русский</a> </li> <li role="presentation"> <a role="menuitem" lang="he" >עברית</a> </li> <li role="presentation"> <a role="menuitem" lang="ar" >العربيّة</a> </li> <li role="presentation"> <a role="menuitem" lang="fa" >فارسی</a> </li> <li role="presentation"> <a role="menuitem" lang="hi" >हिंदी</a> </li> <li role="presentation"> <a role="menuitem" lang="bn" >বাংলা</a> </li> <li role="presentation"> <a role="menuitem" lang="th" >ภาษาไทย</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_tw" >中文 – 繁體</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> <devsite-user enable-profiles fp-auth id="devsite-user"> <span class="button devsite-top-button" aria-hidden="true" visually-hidden>Sign in</span> </devsite-user> </div> </div> </div> <div class="devsite-collapsible-section "> <div class="devsite-header-background"> <div class="devsite-product-id-row" > <div class="devsite-product-description-row"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/identity/authorization" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Lower Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Authorization" > Authorization </a> </li> </ul> </div> </div> <div class="devsite-doc-set-nav-row"> <devsite-tabs class="lower-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Lower tabs"> <tab > <a href="https://developers.google.com/identity/protocols/oauth2" track-metadata-eventdetail="https://developers.google.com/identity/protocols/oauth2" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - oauth 2.0" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: OAuth 2.0" track-name="oauth 2.0" > OAuth 2.0 </a> </tab> <tab class="devsite-active"> <a href="https://developers.google.com/identity/authorization/android" track-metadata-eventdetail="https://developers.google.com/identity/authorization/android" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - android" track-metadata-module="primary nav" aria-label="Android, selected" data-category="Site-Wide Custom Events" data-label="Tab: Android" track-name="android" > Android </a> </tab> <tab > <a href="https://developers.google.com/identity/oauth2/web/guides/overview" track-metadata-eventdetail="https://developers.google.com/identity/oauth2/web/guides/overview" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - web" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Web" track-name="web" > Web </a> </tab> <tab > <a href="https://developers.google.com/identity/account-linking" track-metadata-eventdetail="https://developers.google.com/identity/account-linking" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - google account linking" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Google Account Linking" track-name="google account linking" > Google Account Linking </a> </tab> </nav> </devsite-tabs> </div> </div> </div> </div> </devsite-header> <devsite-book-nav scrollbars > <div class="devsite-book-nav-filter" > <span class="filter-list-icon material-icons" aria-hidden="true"></span> <input type="text" placeholder="Filter" aria-label="Type to filter" role="searchbox"> <span class="filter-clear-button hidden" data-title="Clear filter" aria-label="Clear filter" role="button" tabindex="0"></span> </div> <nav class="devsite-book-nav devsite-nav nocontent" aria-label="Side menu"> <div class="devsite-mobile-header"> <button type="button" id="devsite-close-nav" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close navigation" aria-label="Close navigation"> </button> <div class="devsite-product-name-wrapper"> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> <a href="https://developers.google.com/identity" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Upper Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Google Identity" > <svg class="devsite-google-wordmark" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 148 48"> <title>Google</title> <path class="devsite-google-wordmark-svg-path" d="M19.58,37.65c-9.87,0-18.17-8.04-18.17-17.91c0-9.87,8.3-17.91,18.17-17.91c5.46,0,9.35,2.14,12.27,4.94l-3.45,3.45c-2.1-1.97-4.93-3.49-8.82-3.49c-7.21,0-12.84,5.81-12.84,13.02c0,7.21,5.64,13.02,12.84,13.02c4.67,0,7.34-1.88,9.04-3.58c1.4-1.4,2.32-3.41,2.66-6.16H19.58v-4.89h16.47c0.18,0.87,0.26,1.92,0.26,3.06c0,3.67-1.01,8.21-4.24,11.44C28.93,35.9,24.91,37.65,19.58,37.65z M61.78,26.12c0,6.64-5.1,11.53-11.36,11.53s-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53S61.78,19.43,61.78,26.12z M56.8,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C53.84,33.11,56.8,30.22,56.8,26.12z M87.25,26.12c0,6.64-5.1,11.53-11.36,11.53c-6.26,0-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53C82.15,14.59,87.25,19.43,87.25,26.12zM82.28,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C79.32,33.11,82.28,30.22,82.28,26.12z M112.09,15.29v20.7c0,8.52-5.02,12.01-10.96,12.01c-5.59,0-8.95-3.76-10.22-6.81l4.41-1.83c0.79,1.88,2.71,4.1,5.81,4.1c3.8,0,6.16-2.36,6.16-6.77v-1.66h-0.18c-1.14,1.4-3.32,2.62-6.07,2.62c-5.76,0-11.05-5.02-11.05-11.49c0-6.51,5.28-11.57,11.05-11.57c2.75,0,4.93,1.22,6.07,2.58h0.18v-1.88H112.09z M107.64,26.16c0-4.06-2.71-7.03-6.16-7.03c-3.49,0-6.42,2.97-6.42,7.03c0,4.02,2.93,6.94,6.42,6.94C104.93,33.11,107.64,30.18,107.64,26.16z M120.97,3.06v33.89h-5.07V3.06H120.97z M140.89,29.92l3.93,2.62c-1.27,1.88-4.32,5.11-9.61,5.11c-6.55,0-11.28-5.07-11.28-11.53c0-6.86,4.77-11.53,10.71-11.53c5.98,0,8.91,4.76,9.87,7.34l0.52,1.31l-15.42,6.38c1.18,2.31,3.01,3.49,5.59,3.49C137.79,33.11,139.58,31.84,140.89,29.92zM128.79,25.77l10.31-4.28c-0.57-1.44-2.27-2.45-4.28-2.45C132.24,19.04,128.66,21.31,128.79,25.77z"/> </svg>Identity </a> </li> </ul> </span> </div> </div> <div class="devsite-book-nav-wrapper"> <div class="devsite-mobile-nav-top"> <ul class="devsite-nav-list"> <li class="devsite-nav-item"> <a href="/identity/authentication" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authentication" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authentication </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" > <span class="devsite-nav-text" tooltip menu="Authentication"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Authentication"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/authorization" class="devsite-nav-title gc-analytics-event devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorization" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorization </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" > <span class="devsite-nav-text" tooltip menu="Authorization"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Authorization"> </span> </span> </li> </ul> <ul class="devsite-nav-responsive-tabs"> <li class="devsite-nav-item"> <a href="/identity/protocols/oauth2" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: OAuth 2.0" track-name="oauth 2.0" data-category="Site-Wide Custom Events" data-label="Responsive Tab: OAuth 2.0" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > OAuth 2.0 </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/authorization/android" class="devsite-nav-title gc-analytics-event devsite-nav-has-children devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Android" track-name="android" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip menu="_book"> Android </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="_book"> </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/oauth2/web/guides/overview" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Web" track-name="web" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Web" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Web </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/account-linking" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Google Account Linking" track-name="google account linking" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Account Linking" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Account Linking </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-management" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential management" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential management </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" > <span class="devsite-nav-text" tooltip menu="Credential management"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Credential management"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-verification" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential verification" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential verification </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" > <span class="devsite-nav-text" tooltip menu="Credential verification"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Credential verification"> </span> </span> </li> </ul> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="_book"> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Authorization for Android</span> </div></li> <li class="devsite-nav-item"><a href="/identity/authorization/android" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /identity/authorization/android" track-type="bookNav" track-name="click" track-metadata-eventdetail="/identity/authorization/android" ><span class="devsite-nav-text" tooltip>Overview</span></a></li> </ul> <ul class="devsite-nav-list" menu="Authentication" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Sign In with Google SDKs </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/android-credential-manager" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential Manager for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential Manager for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/gsi/web/guides/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Sign In with Google for Web (including One Tap)" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Sign In with Google for Web (including One Tap) </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/ios/start" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for iOS and macOS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for iOS and macOS </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Industry standards </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/passkeys" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Passkeys" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Passkeys </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/openid-connect/openid-connect" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: OpenID Connect" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > OpenID Connect </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Legacy Sign In </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/one-tap/android/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: One Tap sign-up/sign-in for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > One Tap sign-up/sign-in for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/android/legacy-start-integrating" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/web/sign-in" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for Web" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for Web </span> </a> </li> </ul> <ul class="devsite-nav-list" menu="Authorization" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Call Google APIs </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/android/authorize-access" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorizing for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorizing for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/oauth2/web/guides/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" 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Authorization is the process of granting or rejecting access to data or resources. For example, your app requests your user's consent to access the user's Google Drive.</p> <p>Authentication and authorization calls should be two separate and distinct flows based on the needs of the site or app.</p> <aside class="note"><strong>Note:</strong><span> <a href="https://developers.googleblog.com/2022/02/announcing-authorization-support-for.html">Authorization support for Google Identity Services APIs</a> was announced in February 2022. Previously you could request <a href="/identity/sign-in/android/additional-scopes">access to additional scopes</a> during authentication flow.</span></aside> <p>If your app has features that can make use of Google API data, but are not required as part of your app's core features, you should design your app to be able to gracefully handle cases when API data isn't accessible. For example, you might hide a list of recently saved files when the user hasn't granted Drive access.</p> <p>You should request access to scopes that you need to access Google APIs only when the user performs an action that requires access to a particular API. For example, you should request permission to access the user's Drive whenever the user taps a "Save to Drive" button.</p> <p>By separating authorization from authentication, you can avoid overwhelming new users, or confusing users as to why they are being asked for certain permissions.</p> <p>In Google identity Services, authentication is done using the <a href="https://developers.google.com/android/reference/com/google/android/gms/auth/api/identity/SignInClient">SignInClient</a>. For authorizing actions that need access to user data stored by Google, we recommend using <a href="https://developers.google.com/android/reference/com/google/android/gms/auth/api/identity/AuthorizationClient">AuthorizationClient</a>.</p> <h2 id="requesting_permissions_required_by_user_actions" data-text="Requesting permissions required by user actions" tabindex="-1">Requesting permissions required by user actions</h2> <p>Whenever a user performs an action that requires additional scope, call <code translate="no" dir="ltr">AuthorizationClient.authorize()</code>.</p> <p>For example, if a user performs an action that requires access to their Drive app storage, do the following:</p> <pre class="prettyprint lang-java" translate="no" dir="ltr"><code translate="no" dir="ltr">List<Scopes> requestedScopes = Arrays.asList(DriveScopes.DRIVE_APPDATA); AuthorizationRequest authorizationRequest = AuthorizationRequest.builder().setRequestedScopes(requestedScopes).build(); Identity.getAuthorizationClient(this) .authorize(authorizationRequest) .addOnSuccessListener( authorizationResult -> { if (authorizationResult.hasResolution()) { // Access needs to be granted by the user PendingIntent pendingIntent = authorizationResult.getPendingIntent(); try { startIntentSenderForResult(pendingIntent.getIntentSender(), REQUEST_AUTHORIZE, null, 0, 0, 0, null); } catch (IntentSender.SendIntentException e) { Log.e(TAG, "Couldn't start Authorization UI: " + e.getLocalizedMessage()); } } else { // Access already granted, continue with user action saveToDriveAppFolder(authorizationResult); } }) .addOnFailureListener(e -> Log.e(TAG, "Failed to authorize", e)); </code></pre> <p>In your activity's <code translate="no" dir="ltr">onActivityResult</code> callback, you can check if the required permissions were successfully acquired, and if so, carry out the user action.</p> <pre class="prettyprint lang-java" translate="no" dir="ltr"><code translate="no" dir="ltr">@Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == MainActivity.REQUEST_AUTHORIZE) { AuthorizationResult authorizationResult = Identity.getAuthorizationClient(this).getAuthorizationResultFromIntent(data); saveToDriveAppFolder(authorizationResult); } } </code></pre> </div> <devsite-recommendations display="in-page" hidden yield> </devsite-recommendations> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <devsite-feedback position="footer" project-name="Authorization" product-id="5186570" bucket="Identity guides" context="External devsite feedback" version="t-devsite-webserver-20241114-r00-rc02.464922260396498922" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="footer" class="nocontent" project-icon="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/developers/images/touchicon-180-new.png" > <button> Send feedback </button> </devsite-feedback> <devsite-recommendations id="recommendations-link" yield></devsite-recommendations> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Except as otherwise noted, the content of this page is licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 License</a>, and code samples are licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache 2.0 License</a>. 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