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L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>Messaging Overview</div></a></div><div class="css-1psvkz3"><a class="css-19nl305"><div class="css-2hhlpj"><div class="css-oe3dsw"><svg fill="#ABABB1" width="12px" height="16px" viewBox="0 0 12 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink"><path d="M1.5,0.5 C0.675,0.5 0.0075,1.175 0.0075,2 L0,14 C0,14.825 0.6675,15.5 1.4925,15.5 L10.5,15.5 C11.325,15.5 12,14.825 12,14 L12,5 L7.5,0.5 L1.5,0.5 Z M6.75,5.75 L6.75,1.625 L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>Agent Chat API</div></a><style data-emotion-css="155ms1k">.css-155ms1k{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;padding-right:5px;-webkit-transform:rotate(0deg);-ms-transform:rotate(0deg);transform:rotate(0deg);-webkit-transition:-webkit-transform 300ms;-webkit-transition:transform 300ms;transition:transform 300ms;cursor:pointer;}</style><div class="css-155ms1k"><svg width="24" height="24px" fill="#62626D" weight="24px" class="rmi rmi-chevron-right undefined" viewBox="0 0 24 24"><path d="M8.59 16.58 13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"></path></svg></div></div><div class="css-1psvkz3"><a class="css-19nl305"><div class="css-2hhlpj"><div class="css-oe3dsw"><svg fill="#ABABB1" width="12px" height="16px" viewBox="0 0 12 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink"><path d="M1.5,0.5 C0.675,0.5 0.0075,1.175 0.0075,2 L0,14 C0,14.825 0.6675,15.5 1.4925,15.5 L10.5,15.5 C11.325,15.5 12,14.825 12,14 L12,5 L7.5,0.5 L1.5,0.5 Z M6.75,5.75 L6.75,1.625 L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>Customer Chat API</div></a><div class="css-155ms1k"><svg width="24" height="24px" fill="#62626D" weight="24px" class="rmi rmi-chevron-right undefined" viewBox="0 0 24 24"><path d="M8.59 16.58 13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"></path></svg></div></div><style data-emotion-css="1gg9bms">.css-1gg9bms{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;margin-right:10px;font-weight:600;font-size:16px;border-radius:0px 8px 8px 0px;}.css-1gg9bms:hover{background-color:#f6f6f7;}</style><div class="css-1gg9bms"><style data-emotion-css="17iyluq">.css-17iyluq{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#4284F5;width:100%;}.css-17iyluq:hover{color:#4284F5;cursor:pointer;-webkit-text-decoration:none;text-decoration:none;}</style><a class="css-17iyluq"><div class="css-2hhlpj"><div class="css-oe3dsw"><svg fill="#ABABB1" width="12px" height="16px" viewBox="0 0 12 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink"><path d="M1.5,0.5 C0.675,0.5 0.0075,1.175 0.0075,2 L0,14 C0,14.825 0.6675,15.5 1.4925,15.5 L10.5,15.5 C11.325,15.5 12,14.825 12,14 L12,5 L7.5,0.5 L1.5,0.5 Z M6.75,5.75 L6.75,1.625 L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>LiveChat Node.js SDK</div></a></div><div class="css-1psvkz3"><a class="css-19nl305"><div class="css-2hhlpj"><div class="css-oe3dsw"><svg fill="#ABABB1" width="12px" height="16px" viewBox="0 0 12 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink"><path d="M1.5,0.5 C0.675,0.5 0.0075,1.175 0.0075,2 L0,14 C0,14.825 0.6675,15.5 1.4925,15.5 L10.5,15.5 C11.325,15.5 12,14.825 12,14 L12,5 L7.5,0.5 L1.5,0.5 Z M6.75,5.75 L6.75,1.625 L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>LiveChat Go SDK</div></a></div><div class="css-1psvkz3"><a class="css-19nl305"><div class="css-2hhlpj"><div class="css-oe3dsw"><svg fill="#ABABB1" width="12px" height="16px" viewBox="0 0 12 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink"><path d="M1.5,0.5 C0.675,0.5 0.0075,1.175 0.0075,2 L0,14 C0,14.825 0.6675,15.5 1.4925,15.5 L10.5,15.5 C11.325,15.5 12,14.825 12,14 L12,5 L7.5,0.5 L1.5,0.5 Z M6.75,5.75 L6.75,1.625 L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>LiveChat JS SDK</div></a></div><div class="css-1psvkz3"><a class="css-19nl305"><div class="css-2hhlpj"><div class="css-oe3dsw"><svg fill="#ABABB1" width="12px" height="16px" viewBox="0 0 12 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink"><path d="M1.5,0.5 C0.675,0.5 0.0075,1.175 0.0075,2 L0,14 C0,14.825 0.6675,15.5 1.4925,15.5 L10.5,15.5 C11.325,15.5 12,14.825 12,14 L12,5 L7.5,0.5 L1.5,0.5 Z M6.75,5.75 L6.75,1.625 L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>LiveChat Python SDK</div></a></div><div class="css-1psvkz3"><a class="css-19nl305"><div class="css-2hhlpj"><div class="css-oe3dsw"><svg fill="#ABABB1" width="12px" height="16px" viewBox="0 0 12 16" version="1.1" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink"><path d="M1.5,0.5 C0.675,0.5 0.0075,1.175 0.0075,2 L0,14 C0,14.825 0.6675,15.5 1.4925,15.5 L10.5,15.5 C11.325,15.5 12,14.825 12,14 L12,5 L7.5,0.5 L1.5,0.5 Z M6.75,5.75 L6.75,1.625 L10.875,5.75 L6.75,5.75 Z" fill-rule="nonzero" fill="currentColor"></path></svg></div>References</div></a><div class="css-155ms1k"><svg width="24" height="24px" fill="#62626D" weight="24px" class="rmi rmi-chevron-right undefined" viewBox="0 0 24 24"><path d="M8.59 16.58 13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"></path></svg></div></div></div></aside><style data-emotion-css="1g06r20">.css-1g06r20{padding-bottom:30vh;position:relative;width:100%;}@media (min-width:768px){.css-1g06r20{width:calc(100% - 258px);max-width:900px;}}</style><div class="css-1g06r20"><style data-emotion-css="c8i9h7">.css-c8i9h7{margin-top:120px;padding:0px 30px;}@media (min-width:768px){.css-c8i9h7{padding:0px 60px;}}.css-c8i9h7.redoc{margin-top:60px;display:block;}</style><article class=" css-c8i9h7"><style data-emotion-css="1lyzzun">.css-1lyzzun{margin:3em 0 1em;padding:2em 0 1em;}</style><div class="css-1lyzzun"><style data-emotion-css="12qxxrf">.css-12qxxrf{margin:0;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;font-weight:500;text-rendering:optimizeLegibility;font-size:2.25rem;line-height:1.1;-webkit-letter-spacing:-0.02em;-moz-letter-spacing:-0.02em;-ms-letter-spacing:-0.02em;letter-spacing:-0.02em;}@media (min-width:768px){.css-12qxxrf{-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;}}</style><h2 id="livechat-node.js-sdk" class="css-12qxxrf"><span>LiveChat Node.js SDK</span><style data-emotion-css="1g0dr3m">.css-1g0dr3m{margin-top:8px;}.css-1g0dr3m > label{margin:0 0 5px 0;}.css-1g0dr3m label + div{-webkit-box-pack:end;-webkit-justify-content:flex-end;-ms-flex-pack:end;justify-content:flex-end;}</style></h2></div><style data-emotion-css="1679d3t">.css-1679d3t{border-bottom:1px solid #e0e4e9;padding-bottom:0.5em;}</style><h2 class="heading css-1679d3t"><style data-emotion-css="180507a">.css-180507a{color:inherit;-webkit-text-decoration:none;text-decoration:none;position:relative;}.css-180507a:hover{color:inherit;-webkit-text-decoration:none;text-decoration:none;}.css-180507a:hover:before{content:"#";position:absolute;font-weight:300;left:-1em;top:1px;opacity:0.3;}.css-180507a:focus-visible{outline-width:0px;}</style><a id="introduction" href="#introduction" class="reference css-180507a"><a href="/docs/messaging/node-sdk#introduction"><span class="icon icon-link"></span></a>Introduction</a></h2><p><strong>LiveChat Node.js SDK</strong> was designed to help developers build apps in a quick and easy way. Under the hood, it makes use of the LiveChat <a href="/docs/messaging">Messaging APIs</a>, taking care of this part for you.</p><p>By default, this SDK comes with a method for sending plain text messages, which is a great starting point for further development. Based on the method template we provide, you can easily build other methods. Thanks to that, you have the flexibility to cover the functionalities you need for your app, for example sending rich messages.</p><p>If Messaging APIs seem too intimidating or you just want to build something real quick, <strong>LiveChat Node.js SDK</strong> is your way to go.</p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://www.npmjs.com/package/@livechat/chat-sdk/">LiveChat Node.js SDK on NPM</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://github.com/livechat/chat-sdk/">LiveChat Node.js SDK on GitHub</a></li></ul><h3 class="heading"><a id="versioning" href="#versioning" class="reference css-180507a"><a href="/docs/messaging/node-sdk#versioning"><span class="icon icon-link"></span></a>Versioning</a></h3><p>This is the version 0.2.0 of LiveChat Node.js SDK.</p><h3 class="heading"><a id="initial-configuration" href="#initial-configuration" class="reference css-180507a"><a href="/docs/messaging/node-sdk#initial-configuration"><span class="icon icon-link"></span></a>Initial configuration</a></h3><h4 class="heading"><a id="authorization" href="#authorization" class="reference css-180507a"><a href="/docs/messaging/node-sdk#authorization"><span class="icon icon-link"></span></a>Authorization</a></h4><p>To use LiveChat Node.js SDK, you will need to provide an access token authorizing you with the <a href="/docs/messaging/agent-chat-api/rtm-reference">Agent Chat API</a>.</p><p>If you don't know how to get one, make sure to check out these resources:</p><ul><li><a href="/docs/authorization/agent-authorization">Agent authorization flows</a></li><li><a href="/docs/authorization/authorization-in-practice">Authorization in practice</a></li><li><a href="/docs/authorization/authorizing-api-calls#personal-access-tokens">Personal Access Tokens</a></li></ul><h4 class="heading"><a id="debugging" href="#debugging" class="reference css-180507a"><a href="/docs/messaging/node-sdk#debugging"><span class="icon icon-link"></span></a>Debugging</a></h4><p>A useful feature you can configure is the debugging mode. By default, it's turned off. But if you want to display all messages exchanged with the LiveChat API, you can turn it on by setting <code>debug: true</code>. It may come in handy for troubleshooting as it will also display errors.</p><style data-emotion-css="17buymi">.css-17buymi{width:100%;}@media (min-width:768px){.css-17buymi{padding:25px 25px 30px 0px;}}</style><div class="css-17buymi"><style data-emotion-css="16prjg8">.css-16prjg8{border:1px solid #e8e8e8;border-radius:6px;background-color:#505671;color:white;margin:0 0 20px;max-width:100%;--code-color:#f5fbff;--code-background:#505671;--code-string-color:#56d4bc;}</style><div class="css-16prjg8"><style data-emotion-css="13hnul0">.css-13hnul0{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding:5px 15px;background-color:#383f54;border-radius:8px 8px 0 0;color:#dee5e8;}.css-13hnul0 code{font-size:12px;max-width:100%;-webkit-box-flex:2;-webkit-flex-grow:2;-ms-flex-positive:2;flex-grow:2;word-break:break-all;}.css-13hnul0 .code-sample-header{border:none;background-color:#383f54;color:#dee5e8;padding:0.2em 0;}</style><div class="css-13hnul0"><code class="code-sample-header">DEBUGGING</code><style data-emotion-css="1sg2lsz">.css-1sg2lsz{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;}</style><div class="css-1sg2lsz"><style data-emotion-css="1wp1vo7">.css-1wp1vo7{position:relative;-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;width:45px;}</style><div class="css-1wp1vo7"><style data-emotion-css="xnt8k0">.css-xnt8k0{position:relative;min-height:18px;}</style><div class="css-xnt8k0"><style data-emotion-css="6oazep">.css-6oazep{position:absolute;top:0;left:0;right:0;text-align:right;text-transform:capitalize;line-height:20px;font-size:13px;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;opacity:0;-webkit-transition-delay:0.25s;transition-delay:0.25s;-webkit-transition:none;transition:none;}</style><div class="css-6oazep"><style data-emotion-css="11ycufd">.css-11ycufd{-webkit-box-flex:2;-webkit-flex-grow:2;-ms-flex-positive:2;flex-grow:2;max-width:100%;overflow-x:auto;}</style><div class="css-11ycufd">Copied!</div></div><style data-emotion-css="139ndot">.css-139ndot{position:absolute;top:0;right:0;text-align:right;max-width:24px;opacity:1;-webkit-transition-delay:0.25;transition-delay:0.25;-webkit-transition:opacity 0.25s ease-in-out;transition:opacity 0.25s ease-in-out;}.css-139ndot:hover{cursor:pointer;}</style><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><style data-emotion-css="ju12u0">.css-ju12u0{min-height:0;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;max-width:100%;overflow:scroll;}.css-ju12u0 code{display:inline-block;}</style><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js"><span class="token keyword">const</span> chat <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">ChatSDK</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token literal-property property">debug</span><span class="token operator">:</span> <span class="token boolean">true</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><h4 class="heading"><a id="region" href="#region" class="reference css-180507a"><a href="/docs/messaging/node-sdk#region"><span class="icon icon-link"></span></a>Region</a></h4><p>By default, you'll be connected to a data center in the United States. If you want to change the data center to Europe, specify <code>region: europe</code> in the configuration object.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">REGION</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js"><span class="token keyword">const</span> chat <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">ChatSDK</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token literal-property property">region</span><span class="token operator">:</span> <span class="token string">"europe"</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><h4 class="heading"><a id="api-version" href="#api-version" class="reference css-180507a"><a href="/docs/messaging/node-sdk#api-version"><span class="icon icon-link"></span></a>API version</a></h4><p>By default, you'll make request to the current stable API version (v3.4). To change it to different version, for example v3.5, set <code>apiVersion: 3.5</code> in the configuration object.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">API VERSION CHANGE</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js"><span class="token keyword">const</span> chat <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">ChatSDK</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token literal-property property">apiVersion</span><span class="token operator">:</span> <span class="token string">"3.5"</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><h3 class="heading"><a id="installing-the-sdk" href="#installing-the-sdk" class="reference css-180507a"><a href="/docs/messaging/node-sdk#installing-the-sdk"><span class="icon icon-link"></span></a>Installing the SDK</a></h3><p>To install <strong>LiveChat Node.js SDK</strong>, run the following command:</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">INSTALLING SDK</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre><code>npm i @livechat/chat-sdk </code></pre></div></div></div></div><h2 class="heading css-1679d3t"><a id="data-structures" href="#data-structures" class="reference css-180507a"><a href="/docs/messaging/node-sdk#data-structures"><span class="icon icon-link"></span></a>Data structures</a></h2><p>The LiveChat system is based on four basic types of entities - users, chats, events, and threads.</p><style data-emotion-css="q76ucn">.css-q76ucn{width:100%;overflow-x:auto;}</style><div class="css-q76ucn"><table><thead><tr><th>Data structure</th><th>Description</th><th>Sample</th></tr></thead><tbody><tr><td><strong>Chat</strong></td><td>Chats consist of threads.</td><td><a href="/docs/messaging/agent-chat-api/data-structures#chats">Chat</a></td></tr><tr><td><strong>Thread</strong></td><td>Threads are parts of a chat. They consist of events. They provide continuous chat experience.</td><td><a href="/docs/messaging/agent-chat-api/data-structures#threads">Thread</a></td></tr><tr><td><strong>Event</strong></td><td>Users can add events to chats (for example send a message), which are then added to threads automatically.</td><td><a href="/docs/messaging/agent-chat-api/data-structures#events">Events</a></td></tr><tr><td><strong>User</strong></td><td>There are two basic types of users: Agent and Customer. Users can participate in multiple concurrent chats.</td><td><a href="/docs/messaging/agent-chat-api/data-structures#agent">Agent</a> <a href="/docs/messaging/agent-chat-api/data-structures#customer">Customer</a></td></tr></tbody></table></div><p>All these concepts are thoroughly described in <a href="/docs/messaging#key-concepts">Messaging Overview</a>.</p><h2 class="heading css-1679d3t"><a id="methods" href="#methods" class="reference css-180507a"><a href="/docs/messaging/node-sdk#methods"><span class="icon icon-link"></span></a>Methods</a></h2><h3 class="heading"><a id="init" href="#init" class="reference css-180507a"><a href="/docs/messaging/node-sdk#init"><span class="icon icon-link"></span></a>init</a></h3><p>It handles authorization, intializes the WebSocket connection, attaches event listeners, and then logs in the Agent.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">INIT</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js">chatSDK<span class="token punctuation">.</span><span class="token method function property-access">init</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token literal-property property">access_token</span><span class="token operator">:</span> access_token <span class="token comment">// OR</span> <span class="token literal-property property">personal_access_token</span><span class="token operator">:</span> personal_access_token <span class="token punctuation">}</span><span class="token punctuation">)</span> </code></pre></div></div></div></div><h5 class="heading"><a id="parameters" href="#parameters" class="reference css-180507a"><a href="/docs/messaging/node-sdk#parameters"><span class="icon icon-link"></span></a>Parameters</a></h5><div class="css-q76ucn"><table><thead><tr><th>Parameter</th><th>Required</th><th>Data type</th><th>Notes</th></tr></thead><tbody><tr><td><code>access_token</code></td><td>Yes/No<sup><strong>1</strong></sup></td><td><code>string</code></td><td>See <a href="/docs/messaging/node-sdk#authorization">Authorization</a> to learn how to get an access token. Optionally, you can acquire it directly from <a href="/docs/getting-started/authorization/sign-in-with-livechat#sdk-documentation">Accounts SDK</a> and pass it in to the <code>init()</code> method. The <strong>Simple Agent</strong> app uses this mechanism.</td></tr><tr><td><code>personal_access_token</code></td><td>Yes/No<sup><strong>1</strong></sup></td><td><code>string</code></td><td>See <a href="/docs/authorization/authorizing-api-calls#personal-access-tokens">Authorization docs</a> to learn how to get a Personal Access Token. Provided value should be encoded in <code>base64</code>.</td></tr></tbody></table></div><p><strong>1)</strong> The <code>init</code> function requires one of the parameters to be provided.</p><h3 class="heading"><a id="destroy" href="#destroy" class="reference css-180507a"><a href="/docs/messaging/node-sdk#destroy"><span class="icon icon-link"></span></a>destroy</a></h3><p>It clears any stored resources, removes all listeners, and disconnects from the network. After using this method you won't be able to use the destroyed SDK instance.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">DESTROY</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js">chatSDK<span class="token punctuation">.</span><span class="token method function property-access">destroy</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><h3 class="heading"><a id="getagentdetails" href="#getagentdetails" class="reference css-180507a"><a href="/docs/messaging/node-sdk#getagentdetails"><span class="icon icon-link"></span></a>getAgentDetails</a></h3><p>It allows you to get information about the currently logged in Agent.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">GET AGENT DETAILS</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js">chatSDK <span class="token punctuation">.</span><span class="token method function property-access">getAgentDetails</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token method function property-access">then</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">agentData</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token comment">// access to the agentData object</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token keyword control-flow">catch</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">error</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token comment">// catch an error object</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><h3 class="heading"><a id="sendmessage" href="#sendmessage" class="reference css-180507a"><a href="/docs/messaging/node-sdk#sendmessage"><span class="icon icon-link"></span></a>sendMessage</a></h3><p>It sends a plain text message.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">SEND MESSAGE</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js"><span class="token keyword">const</span> chatId <span class="token operator">=</span> <span class="token string">"PJ0MRSHTDG"</span><span class="token punctuation">;</span> <span class="token keyword">const</span> message <span class="token operator">=</span> <span class="token string">"Hello world"</span><span class="token punctuation">;</span> chatSDK <span class="token punctuation">.</span><span class="token method function property-access">sendMessage</span><span class="token punctuation">(</span>chatId<span class="token punctuation">,</span> message<span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token method function property-access">then</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">event</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token comment">// get event_id or handle a success scenario</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token keyword control-flow">catch</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">error</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token comment">// catch an error object</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><h5 class="heading"><a id="parameters-1" href="#parameters-1" class="reference css-180507a"><a href="/docs/messaging/node-sdk#parameters-1"><span class="icon icon-link"></span></a>Parameters</a></h5><div class="css-q76ucn"><table><thead><tr><th>Parameter</th><th>Required</th><th>Data type</th><th>Notes</th></tr></thead><tbody><tr><td>chat_id</td><td>Yes</td><td><code>string</code></td><td>Id of chat that you want to send a message to</td></tr><tr><td>message</td><td>Yes</td><td><code>string</code></td><td>Message content</td></tr><tr><td>recipients</td><td>No</td><td><code>string</code></td><td>Possible values: <code>all</code> (default), <code>agents</code></td></tr></tbody></table></div><h5 class="heading"><a id="returned-value" href="#returned-value" class="reference css-180507a"><a href="/docs/messaging/node-sdk#returned-value"><span class="icon icon-link"></span></a>Returned value</a></h5><div class="css-q76ucn"><table><thead><tr><th>Value</th><th>Data type</th></tr></thead><tbody><tr><td>event_id</td><td><code>string</code></td></tr></tbody></table></div><h3 class="heading"><a id="creating-custom-methods" href="#creating-custom-methods" class="reference css-180507a"><a href="/docs/messaging/node-sdk#creating-custom-methods"><span class="icon icon-link"></span></a>Creating custom methods</a></h3><p>This SDK supports the RTM transport. For that reason, make sure you use the <a href="/docs/messaging/agent-chat-api/rtm-reference">Agent Chat API RTM</a> reference. When creating your custom methods, base on the payloads from the <a href="/docs/messaging/agent-chat-api/rtm-reference#methods">Agent Chat RTM API methods</a>. In the example below, we're creating a custom method that returns a chat. As you can see in the <a href="/docs/messaging/agent-chat-api/rtm-reference#get-chat">documentation</a>, only <code>chat_id</code> is required, but you can include other optional parameters in your custom method.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">CUSTOM METHODS</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">getChat</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token parameter">chat_id</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token maybe-class-name">ChatSDK</span><span class="token punctuation">.</span><span class="token method function property-access">methodFactory</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token literal-property property">action</span><span class="token operator">:</span> <span class="token string">"get_chat"</span><span class="token punctuation">,</span> <span class="token literal-property property">payload</span><span class="token operator">:</span> <span class="token punctuation">{</span> chat_id <span class="token punctuation">}</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token function">getChat</span><span class="token punctuation">(</span><span class="token string">"PJ0MRSHTDG"</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token method function property-access">then</span><span class="token punctuation">(</span><span class="token parameter">data</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token comment">// get a chat details with the latest thread (if exists)</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token keyword control-flow">catch</span><span class="token punctuation">(</span><span class="token parameter">error</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token comment">// catch an error</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> </code></pre></div></div></div></div><h3 class="heading"><a id="on" href="#on" class="reference css-180507a"><a href="/docs/messaging/node-sdk#on"><span class="icon icon-link"></span></a>on</a></h3><p>The <strong>on</strong> method subscribes to emitted events.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">ON</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js">chatSDK<span class="token punctuation">.</span><span class="token method function property-access">on</span><span class="token punctuation">(</span><span class="token string">"event_name"</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token parameter">data</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token console class-name">console</span><span class="token punctuation">.</span><span class="token method function property-access">log</span><span class="token punctuation">(</span>data<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><p>Here's what you can listen for:</p><div class="css-q76ucn"><table><thead><tr><th>Event name</th><th>Action</th></tr></thead><tbody><tr><td><code>ready</code></td><td>You've been successfully logged in. You're now ready to use all API methods.</td></tr><tr><td>Pushes</td><td>Refer to <a href="/docs/messaging/agent-chat-api/rtm-pushes">documentation</a>.</td></tr></tbody></table></div><h3 class="heading"><a id="off" href="#off" class="reference css-180507a"><a href="/docs/messaging/node-sdk#off"><span class="icon icon-link"></span></a>off</a></h3><p>The <strong>off</strong> method unsubsribes from emitted events.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">OFF</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js">chatSDK<span class="token punctuation">.</span><span class="token method function property-access">off</span><span class="token punctuation">(</span><span class="token string">"event_name"</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token parameter">data</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token console class-name">console</span><span class="token punctuation">.</span><span class="token method function property-access">log</span><span class="token punctuation">(</span>data<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><h3 class="heading"><a id="once" href="#once" class="reference css-180507a"><a href="/docs/messaging/node-sdk#once"><span class="icon icon-link"></span></a>once</a></h3><p>The <strong>once</strong> method subscribes to emitted events and unsubscribes right after the callback function has been called.</p><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">ONCE</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js">chatSDK<span class="token punctuation">.</span><span class="token method function property-access">once</span><span class="token punctuation">(</span><span class="token string">"event_name"</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token parameter">data</span><span class="token punctuation">)</span> <span class="token arrow operator">=></span> <span class="token punctuation">{</span> <span class="token console class-name">console</span><span class="token punctuation">.</span><span class="token method function property-access">log</span><span class="token punctuation">(</span>data<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </code></pre></div></div></div></div><p>Here's what you can listen for:</p><div class="css-q76ucn"><table><thead><tr><th>Event name</th><th>Action</th></tr></thead><tbody><tr><td><code>ready</code></td><td>You've been successfully logged in. You're now ready to use all API methods.</td></tr><tr><td>Pushes</td><td>Refer to <a href="/docs/messaging/agent-chat-api/rtm-pushes">documentation</a>.</td></tr></tbody></table></div><h2 class="heading css-1679d3t"><a id="simple-agent" href="#simple-agent" class="reference css-180507a"><a href="/docs/messaging/node-sdk#simple-agent"><span class="icon icon-link"></span></a>Simple Agent</a></h2><p>To show you <strong>LiveChat Node.js SDK</strong> in action, we've prepared a sample app, <strong>Simple Agent</strong> . Its primary function is to send text messages. Apart from that, it gives you access to previous conversations, as well as the info about the current Agent.</p><style data-emotion-css="v3memn">.css-v3memn{display:block;max-width:100%;overflow:hidden;position:relative;box-sizing:border-box;margin-top:0;margin-left:0;margin-right:0;margin-bottom:10px;}</style><div class="css-v3memn"><style data-emotion-css="1lqhp62">.css-1lqhp62{box-sizing:border-box;display:block;max-width:100%;padding-top:calc(585 / 800 * 100%);}</style><div class="css-1lqhp62"><style data-emotion-css="5r33xa">.css-5r33xa{position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;}</style><img alt="LiveChat Node.js SDK" src="/docs/images/messaging/livechat-chat-sdk.png" decoding="async" class="css-5r33xa"/></div></div><p>To run the app, follow a few steps:</p><ol><li><p><a href="/docs/getting-started/guides#creating-livechat-apps">Create an app</a> in Developer Console.</p></li><li><p>Add the <strong>Authorization</strong> building block. Configure it by entering <em>http://localhost:3000/</em> in <strong>Redirect URI whitelist</strong> and by adding the following <strong>scopes</strong>:</p><ul><li><code>chats--all:rw</code></li><li><code>chats--access:rw</code></li><li><code>agents--all:ro</code></li><li><code>agents-bot--all:ro</code></li><li><code>customers:ro</code></li><li><code>multicast:ro</code></li></ul></li><li><p>Go to the <strong>Private installation</strong> tab and install the app.</p></li><li><p>Clone the <a target="_blank" rel="noopener noreferrer" href="https://github.com/livechat/chat-sdk/">LiveChat Node.js SDK repository</a> from GitHub and go to the <strong>example</strong> folder.</p></li><li><p>In <a target="_blank" rel="noopener noreferrer" href="https://platform.text.com/console/">Developer Console</a>, go to the <strong>Authorization</strong> building block of your app.</p></li><li><p>Copy <strong>Client Id</strong> and paste it into the <code>.env</code> file in the <strong>example</strong> folder.</p></li><li><p>Run <strong>Simple Agent</strong> with the following commands (from the <strong>example</strong> folder perspective):</p></li></ol><div class="css-17buymi"><div class="css-16prjg8"><div class="css-13hnul0"><code class="code-sample-header">SIMPLE AGENT</code><div class="css-1sg2lsz"><div class="css-1wp1vo7"><div class="css-xnt8k0"><div class="css-6oazep"><div class="css-11ycufd">Copied!</div></div><div class="css-139ndot"><svg xmlns="http://www.w3.org/2000/svg" height="18px" viewBox="0 0 24 24" width="18px"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm-1 4H8c-1.1 0-1.99.9-1.99 2L6 21c0 1.1.89 2 1.99 2H19c1.1 0 2-.9 2-2V11l-6-6zM8 21V7h6v5h5v9H8z" fill="currentColor"></path></svg></div></div></div></div></div><div class="css-ju12u0"><div class="remark-highlight"><pre class="language-js"><code class="language-js">npm install <span class="token comment">// install dependencies</span> npm start <span class="token comment">//start the app</span> </code></pre></div></div></div></div><p>To start a chat, log in to you LiveChat account and choose the <strong>Preview live</strong> option available in the <strong>Settings</strong> tab. You'll now be able to receive messages and respond to them from within <strong>Simple Agent</strong>.</p><p>It's worth mentioning that all functions invoked before logging in are queued. Once you're logged in, they are executed in the same order as they were invoked.</p><h2 class="heading css-1679d3t"><a id="changelog" href="#changelog" class="reference css-180507a"><a href="/docs/messaging/node-sdk#changelog"><span class="icon icon-link"></span></a>Changelog</a></h2><p><strong>-- [v0.2.0] - 2022-01-19 --</strong></p><ul><li>Add support for PAT</li><li>Update Simple Agent example</li><li>Set v3.4 as default api version</li></ul><p><strong>-- [v0.1.0] - 2019-11-27 --</strong></p><ul><li>Initial alpha release.</li></ul><h2 class="heading css-1679d3t"><a id="questions" href="#questions" class="reference css-180507a"><a href="/docs/messaging/node-sdk#questions"><span class="icon icon-link"></span></a>Questions</a></h2><p>If you found a bug or a typo, you can let us know directly on GitHub. In case of any questions or feedback, don't hesitate to contact us at <a href="mailto:developers@text.com">developers@text.com</a>. 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