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Statement List Syntax | Google Digital Asset Links | Google for Developers
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</span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/digital-asset-links/v1/samples" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Samples" track-name="samples" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Samples" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Samples </span> </a> </li> <li class="devsite-nav-item"> <a href="/digital-asset-links/tools/generator" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Tools" track-name="tools" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Tools" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Tools </span> </a> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="_book"> <li class="devsite-nav-item"><a href="/digital-asset-links/v1/reference-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/v1/reference-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/v1/reference-overview" ><span class="devsite-nav-text" tooltip>Reference Overview</span></a></li> <li class="devsite-nav-item"><a href="/digital-asset-links/v1/statements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/v1/statements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/v1/statements" ><span class="devsite-nav-text" tooltip>Statement List Syntax</span></a></li> <li class="devsite-nav-item"><a href="/digital-asset-links/v1/relation-strings" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/v1/relation-strings" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/v1/relation-strings" ><span class="devsite-nav-text" tooltip>Relation Strings</span></a></li> <li class="devsite-nav-item devsite-nav-break"></li> <li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>API Usage</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/digital-asset-links/v1/libraries" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/v1/libraries" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/v1/libraries" ><span class="devsite-nav-text" tooltip>Installing Client Libraries</span></a></li><li class="devsite-nav-item"><a href="/digital-asset-links/v1/parameters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/v1/parameters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/v1/parameters" ><span class="devsite-nav-text" tooltip>Query Parameters</span></a></li><li class="devsite-nav-item"><a href="/digital-asset-links/v1/errors/core_errors" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/v1/errors/core_errors" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/v1/errors/core_errors" ><span class="devsite-nav-text" tooltip>API Errors</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>RPC</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rpc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rpc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rpc" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rpc/google.digitalassetlinks.v1" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rpc/google.digitalassetlinks.v1" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rpc/google.digitalassetlinks.v1" ><span class="devsite-nav-text" tooltip>google.digitalassetlinks.v1</span></a></li><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rpc/google.protobuf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rpc/google.protobuf" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rpc/google.protobuf" ><span class="devsite-nav-text" tooltip>google.protobuf</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>REST</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rest" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rest" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rest" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Collections</span> </div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>assetlinks</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rest/v1/assetlinks" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rest/v1/assetlinks" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rest/v1/assetlinks" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rest/v1/assetlinks/check" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rest/v1/assetlinks/check" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rest/v1/assetlinks/check" ><span class="devsite-nav-text" tooltip>check</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>statements</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rest/v1/statements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rest/v1/statements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rest/v1/statements" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rest/v1/statements/list" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rest/v1/statements/list" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rest/v1/statements/list" ><span class="devsite-nav-text" tooltip>list</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Other Types</span> </div></li><li class="devsite-nav-item"><a href="/digital-asset-links/reference/rest/v1/Asset" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /digital-asset-links/reference/rest/v1/Asset" track-type="bookNav" track-name="click" track-metadata-eventdetail="/digital-asset-links/reference/rest/v1/Asset" ><span class="devsite-nav-text" tooltip>Asset</span></a></li></ul></div></li></ul></div></li> </ul> </div> </div> </nav> </devsite-book-nav> <section id="gc-wrapper"> <main role="main" class="devsite-main-content" has-book-nav > <devsite-content> <article class="devsite-article"> <div class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="" > Home </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/products" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="2" track-type="globalNav" track-name="breadcrumb" track-metadata-position="2" track-metadata-eventdetail="" > Products </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/digital-asset-links" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="3" track-type="globalNav" track-name="breadcrumb" track-metadata-position="3" track-metadata-eventdetail="Google Digital Asset Links" > Google Digital Asset Links </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/digital-asset-links/v1/reference-overview" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="4" track-type="globalNav" track-name="breadcrumb" track-metadata-position="4" track-metadata-eventdetail="" > Reference </a> </li> </ul> <devsite-thumb-rating position="header"> </devsite-thumb-rating> </div> <h1 class="devsite-page-title" tabindex="-1"> Statement List Syntax </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix "> <p>A statement list is a <a href="http://json.org/">JSON-encoded</a> file or snippet in a well-known location.</p> <h2 id="location-of-statement-list" data-text="Location of statement list" tabindex="-1">Location of statement list</h2> <p>See <a href="/digital-asset-links/v1/create-statement">Creating a statement list</a> to learn where this list should be stored.</p> <h2 id="syntax" data-text="Syntax" tabindex="-1">Syntax</h2> <p>The statement list or snippet consists of a JSON array of one or more website or app statements as JSON objects. These statements can be in any order. Here is the general syntax:</p> <div></div><devsite-code><pre translate="no" dir="ltr" is-upgraded>[ { "relation": ["<var translate="no">relation_string</var>"], "target": {<var translate="no">target_object</var>} } <em>, ...</em> ]</pre></devsite-code> <dl> <dt>relation</dt> <dd>An array of one or more strings that describe the relation being declared about the target. See the list of <a href="/digital-asset-links/v1/relation-strings">defined relation strings</a>. <strong>Example:</strong> <code translate="no" dir="ltr">delegate_permission/common.handle_all_urls</code></dd> <dt>target</dt> <dd>The target asset to whom this statement applies. Available target types: <ul style="list-style:none"> <li> <section class="expandable"><strong class="showalways">Website target</strong> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="JavaScript"><span class="devsite-syntax-s2">"target"</span><span class="devsite-syntax-o">:</span><span class="devsite-syntax-w"> </span><span class="devsite-syntax-p">{</span> <span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"namespace"</span><span class="devsite-syntax-o">:</span><span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"web"</span><span class="devsite-syntax-p">,</span> <span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"site"</span><span class="devsite-syntax-o">:</span><span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"<var translate="no">site_root_url</var>"</span> <span class="devsite-syntax-p">}</span></pre></devsite-code> <dl> <dt>namespace</dt> <dd>Must be <code translate="no" dir="ltr">web</code> for websites.</dd> <dt>site</dt> <dd>URI of the site that is the target of the statement, in the format <code translate="no" dir="ltr">http[s]://<<var translate="no">hostname</var>>[:<<var translate="no">port</var>>]</code>, where <var translate="no"><hostname></var> is fully-qualified, and <var translate="no"><port></var> must be omitted when using port 80 for HTTP, or port 443 for HTTPS. A website target can only be a root domain; you cannot limit to a specific subdirectory; all directories under this root will match. Subdomains should not be considered to match: that is, if the statement file is hosted on www.example.com, then www.puppies.example.com should not be considered a match. For rules and examples about website target matching, see <a href="/digital-asset-links/v1/create-statement#targets">the targets documentation</a>. <strong>Example:</strong> <code translate="no" dir="ltr">http://www.example.com</code></dd> </dl> </section></li> <li> <section class="expandable"><strong class="showalways">Android app target</strong> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="JavaScript"><span class="devsite-syntax-s2">"target"</span><span class="devsite-syntax-o">:</span><span class="devsite-syntax-w"> </span><span class="devsite-syntax-p">{</span> <span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"namespace"</span><span class="devsite-syntax-o">:</span><span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"android_app"</span><span class="devsite-syntax-p">,</span> <span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"package_name"</span><span class="devsite-syntax-o">:</span><span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"<var translate="no">fully_qualified_package_name</var>"</span><span class="devsite-syntax-p">,</span> <span class="devsite-syntax-w"> </span><span class="devsite-syntax-s2">"sha256_cert_fingerprints"</span><span class="devsite-syntax-o">:</span><span class="devsite-syntax-w"> </span><span class="devsite-syntax-p">[</span><span class="devsite-syntax-s2">"<var translate="no">cert_fingerprint</var>"</span><span class="devsite-syntax-p">]</span> <span class="devsite-syntax-p">}</span></pre></devsite-code> <dl> <dt>namespace</dt> <dd>Must be <code translate="no" dir="ltr">android_app</code> for Android apps.</dd> <dt>package_name</dt> <dd>The fully-qualified package name of the app that this statement applies to. <strong>Example:</strong> <code translate="no" dir="ltr">com.google.android.apps.maps</code></dd> <dt>sha256_cert_fingerprints</dt> <dd>The <strong>uppercase SHA265 fingerprint</strong> of the certificate for the app that this statement applies to. You can compute this using <a href="https://www.openssl.org/"><code translate="no" dir="ltr"> openssl</code></a> or Java <code translate="no" dir="ltr">keytool</code> as shown here: <ul> <li><code translate="no" dir="ltr">openssl x509 -in $CERTFILE -noout -fingerprint -sha256</code></li> <li><code translate="no" dir="ltr">keytool -printcert -file $CERTFILE | grep SHA256</code></li> </ul> <strong>Example:</strong> <code translate="no" dir="ltr">["14:6D:E9:83:C5:73:06:50:D8:EE:B9:95:2F:34:FC:64:16:A0:83:42:E6:1D:BE:A8:8A:04:96:B2:3F:CF:44:E5"]</code>. <p>If you're using <a href="https://support.google.com/googleplay/android-developer/answer/9842756" >Play App Signing</a> for your app, then the certificate fingerprint produced by running <code translate="no" dir="ltr">keytool</code> or <code translate="no" dir="ltr">openssl</code> locally usually doesn't match the one on users' devices. You can verify whether you're using Play App Signing for your app in your <a href="https://play.google.com/console/" >Play Console</a> developer account under <strong translate="no" dir="ltr">Release > Setup > App Integrity</strong>; if you do, then you'll also find the correct Digital Asset Links JSON snippet for your app on the same page.</p></dd> </dl> </section></li> </ul> </dd> </dl> <h2 id="example-statement-list" data-text="Example statement list" tabindex="-1">Example statement list</h2> <p>Here is an example website statement list that contains statements about both websites and apps: <a href="http://example.digitalassetlinks.org/.well-known/assetlinks.json">http://example.digitalassetlinks.org/.well-known/assetlinks.json</a></p> <h2 id="scaling-to-dozens-of-statements-or-more" data-text="Scaling to dozens of statements or more" tabindex="-1">Scaling to dozens of statements or more</h2> <p>In some cases, a principal might want to make many different statements about different targets, or there might be a need to issue statements from different principals to the same set of targets. For example, a website may be available on many different per-country Top Level Domains, and all of them may want to make a statement about the same mobile app.</p> <p>For these situations, <strong>include statements</strong> can be helpful. Using this mechanism, you can set up pointers from many different principals to one central location, which defines statements for all of the principals.</p> <aside class="caution"><b>Note:</b> A maximum of 10 include statements are allowed in a complete statement list tree. This means that the maximum number of files in the tree is: (10 included statement files) + (the root statement file) = 11 total.</aside> <p>For example, you might decide that the central location should be `https://example.com/includedstatements.json`. This file can be configured to contain the same content as in the examples above.</p> <p>To set up a pointer from a <strong>web site</strong> to the include file, change `https://example.com/.well-known/assetlinks.json` to:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Text only">[{ "include": "https://example.com/includedstatements.json" }]</pre></devsite-code> <p>To set up a pointer from an <strong>Android app</strong> to the include file, change `res/values/strings.xml` to:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="scdoc"><resources> ... <string name="asset_statements"> [{ \"include\": \"https://example.com/includedstatements.json\" }] </string> </resources></pre></devsite-code> <h2 id="more-information" data-text="More Information" tabindex="-1">More Information</h2> <p>There is a more detailed explanation of the statement list format and the underlying concepts in our <a href="https://github.com/google/digitalassetlinks/blob/master/well-known/details.md">specification document</a>.</p> </div> <devsite-recommendations display="in-page" hidden yield> </devsite-recommendations> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <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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