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class="_55w7 win x1 Locale_zh_HK" dir="ltr"><script type="text/javascript" nonce="9ZpNmGvS">requireLazy(["bootstrapWebSession"],function(j){j(1732671398)})</script><div class="_li"><div style="position: absolute;"><iframe frameborder="0" height="0" width="0" id="u_0_1_vC"></iframe></div><div style="position: absolute;"><iframe frameborder="0" height="0" width="0" id="u_0_2_WW"></iframe></div><div style="position: absolute;"><iframe frameborder="0" height="0" width="0" id="u_0_3_Gi"></iframe></div><div style="position: absolute;"><iframe frameborder="0" height="0" width="0" id="u_0_4_RR"></iframe></div><span><img src="https://facebook.com/security/hsts-pixel.gif?c=3.2.5" width="0" height="0" style="display:none" /></span><div class="_li _4xit"><div class="_1n5h" id="devsite_header" data-referrer="devsite_header" data-click-area="Nav"></div><div class="_11st" data-click-area="Main" id="rebrandBodyID"><div class="_1525"><div class="_660z _3u39"><div class="_5gyr _5gy5 _5k6m"><div class="_1jbo _4are"><div id="documentation_breadcrumbs_pagelet" data-referrer="documentation_breadcrumbs_pagelet"></div></div></div><div class="_5gy5"><div class="_1jbo _4are _1jca _1jc- _5zlb"><div class="_4lr1" id="documentation_primary_nav_pagelet"><div class="_7a4" id="documentation_primary_nav_pagelet_container"><div class="_3wm0"><div class="_3wm1" data-click-area="left_side_nav"><div class="_3-96 _v-_"><a class="_cdp" href="/docs/whatsapp/on-premises">WhatsApp Business 平台企業內部 API</a></div><ul><li class="_3cx7 _3cxd"><a href="/docs/whatsapp/on-premises/overview" class="_3cx9">Overview</a></li><li class="_3cx7 _3cxd"><a href="/docs/whatsapp/on-premises/get-started" class="_3cx9">新手指南</a></li><li class="_3cx7 _3cxd"><a href="/docs/whatsapp/on-premises/phone-numbers" class="_3cx9">Phone Numbers</a></li><li class="_3cx7 _3cxd"><a href="/docs/whatsapp/on-premises/guides/webhooks" class="_3cx9">Webhooks</a></li><li class="_3cx7 _3cxd"><a href="/docs/whatsapp/on-premises/guides" 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id="u_0_0_cc"><div class="_4cel"><span data-click-area="main"><div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><div class="_7aa"><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><p><span style="float:left;padding-top:3px;padding-right:5px;"><img class="img" src="https://scontent-nrt1-1.xx.fbcdn.net/v/t39.8562-6/59399685_595945094257428_807173360218800128_n.png?_nc_cat=108&ccb=1-7&_nc_sid=f537c7&_nc_ohc=nHSuY2Nk42UQ7kNvgGTLtoP&_nc_zt=14&_nc_ht=scontent-nrt1-1.xx&_nc_gid=A6S9P8nw2fnOJqNxMMawEez&oh=00_AYDdbRZ0oOOb0p3yDoctwPrZIaPNFB8ZrGXz2LrNc7MmHA&oe=674C573A" height="20px" alt="" /></span><a href="https://developers.facebook.com/docs/whatsapp">WhatsApp Business 平台</a> > <a href="https://developers.facebook.com/docs/whatsapp/on-premises">內部部署 API</a></p></div></div></div></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><div class="_7aa"><div class="_57yz _57y_ _3-8p"><div class="_57y-"><p>我們即將停用內部部署 API。詳情請參閱<a href="/docs/whatsapp/on-premises/sunset">內部部署 API 停用</a>文件，並從中了解如何轉用新一代雲端 API。</p></div></div></div></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h1>Overview</h1> <p>This document shows you how to make WhatsApp Business API requests and what the returned responses might look like.</p> </div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Authentication</h2> <p>To use the WhatsApp Business API, you must authenticate yourself. Only users with valid authentication tokens can access the service.</p> <div style="text-align:center;"><div class="_57w7"><div class="_4-u2 mvl _57w8 _4-u8"><div class="_4-u3 _57u_ _4-u4 _57wa _52jv"><img class="_57w9" src="https://scontent-nrt1-1.xx.fbcdn.net/v/t39.2365-6/22470131_1953690141515527_3484338875109736448_n.png?_nc_cat=108&ccb=1-7&_nc_sid=e280be&_nc_ohc=ZeLeGOSmfGoQ7kNvgGba19-&_nc_zt=14&_nc_ht=scontent-nrt1-1.xx&_nc_gid=A6S9P8nw2fnOJqNxMMawEez&oh=00_AYA35WWQcWr3WZHbgU5cmum-u6iEaj5DgLKLxAYnjUij0A&oe=67609EA4" /></div><div class="_4-u3 pam _57zl _57d8">Authentication Flow</div></div></div></div><h3>Tokens</h3> <p>For your initial login, use your username and password for basic authentication. For all other secure interactions, you must use the bearer token that is returned after a successful login.</p> <p>The tokens are sent in the authorization header of the HTTP request for many of the WhatsApp Business API calls. In particular, notice in the following example that the type of authorization that is used with this token is <code>Bearer</code>.</p> <pre class="_5s-8 prettyprint lang-code" style=""><i>HTTP-METHOD</i> /secured-path Authorization: Bearer <i>your-auth-token</i></pre><p>For all secured paths, we validate the token. During validation, if a token is found to be expired, that token is removed from the system. Upon successful validation, the request is allowed to proceed. Requests made with an invalid token receive a <code>401 Unauthorized</code> error code.</p> <h4 id="expiry">Expiration</h4> <p>You can use your token for authentication until the token expires. A token can expire for these reasons:</p> <ul> <li><strong>Periodic</strong> - Token are set to expire after a default time, such as 7 days. The <code>expires_after</code> parameter in the response provides the expiration date for the token. Log in again to generate a new token.</li> <li><strong>Explicit</strong> - Tokens are revoked when you log out, which is one way to explicitly revoke the token. If an user is removed from the system, then all associated tokens with that user are deleted.</li> </ul> <div class="_57yz _57z1 _3-8p"><div class="_57y-"><p>Authentication tokens expire after <strong>7 days</strong>, so you will need to log in weekly to update the <code>Bearer</code> token.</p> </div></div><h4>Headers</h4> <p>Many client software apps (e.g., Postman) take the <code>username:password</code> parameter and build the authentication header automatically. If you need to build it yourself, here are the basic steps:</p> <ol> <li>Create the <code>username:password</code> string.</li> <li>Use your favorite tool to base64-encode the string.</li> </ol> <p>The base64 encoding for the default username and password string <code>admin:secret</code> results in <code>YWRtaW46c2VjcmV0</code>, so the admin credentials will be <code>Authorization: Basic YWRtaW46c2VjcmV0</code>.</p> <h3>API Keys</h3> <div> If you wish to monitor the <code>health</code>, <code>metrics</code>, and <code>stats</code> nodes from an orchestrator, Bearer tokens are not the best option for ongoing checks as they expire every 7 days. To mediate this, you can use an API key, which can be set using the <code>WA_API_KEY</code> environment variable in the <code>waweb</code> environment section in the <code>.yml</code> file of your installation setup. <pre class="_5s-8 prettyprint lang-code" style=""> services: ... waweb: ... environment: ... WA_API_KEY: <i>your-api-key-token</i></pre> The API key you set must have a minimum of 12 characters and a maximum of 128 characters. The Webapp must be restarted whenever you change the API key. </div></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2 id="request">WhatsApp Business API Requests</h2> <p>You can use the WhatsApp-provided <a href="/docs/whatsapp/guides/postman">Postman Collection</a> or cURL API calls to send requests.</p> <p>A valid HTTP request includes the following components:</p> <ul> <li><strong>Method</strong> — The action being requested of the endpoint<br /> Commonly used methods are <code>POST</code>, <code>GET</code>, <code>DELETE</code>, <code>PATCH</code> and <code>PUT</code>.</li> <li><strong>URL</strong> — The URL of the server along with the API endpoint for the request</li> <li><strong>Headers</strong> — Meta information about the request<br /> All requests that contain a message body should set the <code>Content-Type</code> in the header (e.g.,<code>“Content-Type: application/json”</code>). This uses UTF-8 character encoding, and <code>charset=utf-8</code> is the default for <code>application/json</code>.<br /> Headers <strong>must</strong> also contain appropriate authentication information; see the <a href="/docs/whatsapp/api/users/login">Login and Authentication documentation</a> for more information.</li> <li><strong>Body</strong>: Contains the payload data, if any</li> </ul> <h3>Example</h3> <p>This cURL API request example of the WhatsApp Business API format uses the <a href="/docs/whatsapp/api/contacts"><code>contacts</code> node</a>:</p> <pre class="_5s-8 prettyprint lang-code" style=""> curl -X POST \ https://<i>your-webapp-hostname</i>:<i>your-webapp-port</i>/v1/contacts \ -H 'Authorization: Bearer <i>your-auth-token</i>' \ -H 'Content-Type: application/json' \ -d '{ "blocking": "wait", "contacts": [ "6315551000", "6315551002", "631-555-1005" ] }' </pre><ul class="uiList _4of _4kg"><li><div class="fcb"><i><code>your-webapp-hostname</code></i> is the hostname, FQDN or IP address, where the Webapp container or the load balancer runs. </div></li><li><div class="fcb"><i><code>your-webapp-port</code></i> is optional and required only if either the load balancer listens on or if the Webapp container is mapped to a non-standard HTTPS port. <b>Note:</b> If using Docker to run your WhatsApp Business API client, you can run the <code>docker ps</code> command to find the port. </div></li><li><div class="fcb"><code>/v1/contacts</code> is the endpoint to send the data request to </div></li><li><div class="fcb"><i><code>your-auth-token</code></i> is obtained after you log in using the <code>/v1/users/login</code> endpoint. See the <a href="/docs/whatsapp/api/users/login">Login and Authentication documentation</a> for more information.</div></li><li><div class="fcb"> A request body is included in the above example. Alternatively, the contents of body can be stored in a file and passed with <code>-d @<i>filepath</i>`</code>.</div></li></ul></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2 id="response">WhatsApp Business API Responses</h2> <p>A WhatsApp Business API response has the following components:</p> <ul> <li><strong>HTTP Status Code</strong> — Status codes are issued by the server in response to a request made to the server. See <a href="/docs/whatsapp/api/errors#http">HTTP Status Codes</a> for more information.</li> <li><strong>Payload</strong> — <em>Only returned with a successful response.</em> The payload object name and contents vary based on the request. </li> <li><strong>Meta</strong> — Contains generic information such as the WhatsApp Business API client version. </li> <li><strong>Errors</strong> — <em>Only returned with a failed request.</em> Contains an array of error objects that are present when there is an error. See the <a href="/docs/whatsapp/api/Errors/Errors#error">Error Codes</a> for more information.</li> </ul> <h3>Example</h3> <p>In this example, the payload is <code>contacts</code> because we sent a request to the <code>contacts</code> endpoint in the above request example.</p> <p><strong>Note:</strong> Normally in a successful response, <code>errors</code> would not be present; they are included here purely as an example.</p> <pre class="_5s-8 prettyprint lang-code" style=""> 200 OK { "contacts": [ { "input": "1-631-555-1002", "status": "valid", "wa_id": "16315551002" }, { "input": "6315551003", "status": "valid", "wa_id": "16315551003" } ], "meta": { "version": "<i>whatsapp-business-api-client-version</i>", "api_status": "deprecated" | "experimental" | "stable" } "errors": [{ "code": <i>error-code</i>, "title": "<i>error-code-title</i>", "details": "<i>optional-detailed-error-message</i>" }] } </pre></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Learn More</h2> <ul> <li><a href="https://developers.facebook.com/docs/whatsapp/on-premises/overview/client-architecture">Client Architecture</a></li> <li><a href="https://developers.facebook.com/docs/whatsapp/on-premises/overview/security">Security</a></li> <li><a href="https://developers.facebook.com/docs/whatsapp/on-premises/overview/advanced-topics">Advanced Topics</a> such as webhooks, two-factor authentication, monitoring, and more.</li> </ul> </div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2 id="capacity">Capacity Rate Limits</h2> <p>Capacity rate limiting is imposed on each available API endpoint and will return the appropriate HTTPS error codes (e.g., <code>429</code>, <code>503</code>, etc.) depending on the state of the system.</p> <p>Two forms of capacity rate limiting are currently supported:</p> <ul> <li><strong>Request rate limiting</strong> — Request rate limiting is the throttling of incoming requests on an API endpoint. When the number of requests per second limit is reached, the endpoint will start returning a <code>429</code> error code.<br /> <ul> <li>Beginning with <code>v2.25.3</code>, the request rate limit for the <code>messages</code> endpoint is 50 requests per second with bursts allowed up to 150 requests per second. </li> <li>For versions prior to <code>v2.25.3</code> and all other endpoints, the request rate limit is 20 requests per second with bursts allowed up to 60 requests per second.</li> </ul></li> <li><strong>Concurrent rate limiting</strong> — Concurrent rate limiting is the throttling of incoming requests when the Coreapp itself is under heavy load (e.g., job queue size grew too large). At this point, the endpoint will start returning a <code>503</code> error.</li> </ul> <p>When you hit either of these capacity rate limiting scenarios, you should halt any further requests and slow the pace of your API requests. If you start seeing many capacity rate limit errors, it would be advisable to build a queue on your end to throttle the requests.</p> <div class="_57yz _57z0 _3-8p"><div class="_57y-"><p>If your expected average send-rates are significantly higher and queuing is not an effective strategy, please look into our <a href="/docs/whatsapp/availability-scaling">High Availability and Scaling</a> options.</p> </div></div></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Next Steps</h2> <ul> <li><a href="/docs/whatsapp/on-premises/get-started">Get Started</a> with the On-Premises API.</li> </ul> </div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><div class="_7aa"><div style="border:1px solid gray; padding:10px; align:center; border-radius:7px; text-align:center;"><a href="https://developers.facebook.com/docs/whatsapp" style="padding:10px">WhatsApp Business 平台</a> | <a href="https://developers.facebook.com/docs/whatsapp/business-management-api" style="padding:10px">雲端 API </a> | <a href="https://developers.facebook.com/docs/whatsapp/cloud-api" style="padding:10px">企業內部 API </a> | <a href="https://developers.facebook.com/docs/whatsapp/on-premises" style="padding:10px">企業管理 API</a></div></div></div></div></div></span><div class="_4-u2 _57mb _1u44 _4-u8"><div class="_4-u3 _588p _4_k"><fb:like href="https://developers.facebook.com/docs/whatsapp/on-premises/overview/" layout="button_count" share="1"></fb:like></div></div><div id="developer_documentation_toolbar" data-referrer="developer_documentation_toolbar" data-click-area="toolbar"></div><script nonce="9ZpNmGvS"> !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod? n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n; n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0; 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