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Middlewares
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<div id="module_callbackMiddleware"> </div>
<h2 id="callbackmiddleware-⇒-function"><a name="callbackmiddleware-⇒-function" class="plugin-anchor" href="#callbackmiddleware-⇒-function"><i class="fa fa-link" aria-hidden="true"></i></a>callbackMiddleware ⇒ <code>function</code></h2>
<p>Creates callback middleware, which allows to get user back to previous context</p>
<p><strong>Example</strong> </p>
<pre><code class="lang-javascript"><span class="hljs-keyword">const</span> { Router, callbackMiddleware, ai } = <span class="hljs-built_in">require</span>(<span class="hljs-string">'botnaut'</span>);
<span class="hljs-keyword">const</span> bot = <span class="hljs-keyword">new</span> Router();
bot.use(callbackMiddleware());
bot.use([<span class="hljs-string">'fooRoute'</span>, <span class="hljs-regexp">/^foo$/</span>], (req, res) => {
<span class="hljs-keyword">if</span> (!req.isFromCallback()) {
<span class="hljs-comment">// is hidden, when user is just comming back</span>
res.text(<span class="hljs-string">'This is your FOO response'</span>);
}
<span class="hljs-keyword">if</span> (!req.hasCallback()) {
res.setCallback(<span class="hljs-string">'fooRoute'</span>);
}
<span class="hljs-comment">// ability get back to previous content</span>
res.addCallbackQuickReply(<span class="hljs-string">'Go back'</span>);
res.text(<span class="hljs-string">'So, what you want?'</span>, {
barRoute: <span class="hljs-string">'Go to bar'</span>
});
})
bot.use([<span class="hljs-string">'barRoute'</span>, <span class="hljs-regexp">/^bar$/</span>], (req, res) => {
<span class="hljs-keyword">if</span> (!req.isFromCallback()) {
res.text(<span class="hljs-string">'This is your BAR response'</span>);
}
<span class="hljs-keyword">if</span> (!req.hasCallback()) {
res.setCallback(<span class="hljs-string">'barRoute'</span>);
}
<span class="hljs-keyword">if</span> (!res.proceedCallback()) {
res.text(<span class="hljs-string">'So, what\'s next?'</span>, {
fooRoute: <span class="hljs-string">'Go to foo'</span>
});
}
});
</code></pre>
<ul>
<li><a href="#module_callbackMiddleware">callbackMiddleware</a> ⇒ <code>function</code><ul>
<li><a href="#exp_module_callbackMiddleware--setCallback">setCallback(action, [callbackContext], [callbackText])</a> ⇒ <code>this</code> ⏏</li>
<li><a href="#exp_module_callbackMiddleware--hasCallback">hasCallback([callbackContext])</a> ⇒ <code>boolean</code> ⏏</li>
<li><a href="#exp_module_callbackMiddleware--isFromCallback">isFromCallback([callbackContext])</a> ⇒ <code>boolean</code> ⏏</li>
<li><a href="#exp_module_callbackMiddleware--proceedCallback">proceedCallback([callbackContext])</a> ⇒ <code>boolean</code> ⏏</li>
<li><a href="#exp_module_callbackMiddleware--addCallbackQuickReply">addCallbackQuickReply(replyText)</a> ⇒ <code>this</code> ⏏</li>
</ul>
</li>
</ul>
<div id="exp_module_callbackMiddleware--setCallback"> </div>
<h3 id="setcallbackaction-callbackcontext-callbacktext-⇒-this-⏏"><a name="setcallbackaction-callbackcontext-callbacktext-⇒-this-⏏" class="plugin-anchor" href="#setcallbackaction-callbackcontext-callbacktext-⇒-this-⏏"><i class="fa fa-link" aria-hidden="true"></i></a>setCallback(action, [callbackContext], [callbackText]) ⇒ <code>this</code> ⏏</h3>
<p>Sets action, where to go back, when user responds with text</p>
<p><strong>Kind</strong>: Exported function </p>
<table>
<thead>
<tr>
<th>Param</th>
<th>Type</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>action</td>
<td><code>string</code></td>
<td></td>
<td>relative or absolute action (usualy current action)</td>
</tr>
<tr>
<td>[callbackContext]</td>
<td><code>string</code> \</td>
<td><code>null</code></td>
<td><code>null</code></td>
<td>context of callback</td>
</tr>
<tr>
<td>[callbackText]</td>
<td><code>string</code> \</td>
<td><code>null</code></td>
<td><code>null</code></td>
<td>custom text response</td>
</tr>
</tbody>
</table>
<p><strong>Example</strong> </p>
<pre><code class="lang-javascript">bot.use(<span class="hljs-string">'myAction'</span>, (req, res) => {
res.setCallback(<span class="hljs-string">'myAction'</span>); <span class="hljs-comment">// return back</span>
});
</code></pre>
<div id="exp_module_callbackMiddleware--hasCallback"> </div>
<h3 id="hascallbackcallbackcontext-⇒-boolean-⏏"><a name="hascallbackcallbackcontext-⇒-boolean-⏏" class="plugin-anchor" href="#hascallbackcallbackcontext-⇒-boolean-⏏"><i class="fa fa-link" aria-hidden="true"></i></a>hasCallback([callbackContext]) ⇒ <code>boolean</code> ⏏</h3>
<p>Returns true, when callback has been prevously set.
It's usefull, when you don't want to bouce back the methods.</p>
<p><strong>Kind</strong>: Exported function </p>
<table>
<thead>
<tr>
<th>Param</th>
<th>Type</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr>
<td>[callbackContext]</td>
<td><code>string</code></td>
<td><code>null</code></td>
</tr>
</tbody>
</table>
<p><strong>Example</strong> </p>
<pre><code class="lang-javascript">bot.use([<span class="hljs-string">'fooRoute'</span>, <span class="hljs-regexp">/^foo$/</span>], (req, res) => {
<span class="hljs-comment">// set callback, only when this request does not have one</span>
<span class="hljs-keyword">if</span> (!req.hasCallback()) {
res.setCallback(<span class="hljs-string">'fooRoute'</span>);
}
});
</code></pre>
<div id="exp_module_callbackMiddleware--isFromCallback"> </div>
<h3 id="isfromcallbackcallbackcontext-⇒-boolean-⏏"><a name="isfromcallbackcallbackcontext-⇒-boolean-⏏" class="plugin-anchor" href="#isfromcallbackcallbackcontext-⇒-boolean-⏏"><i class="fa fa-link" aria-hidden="true"></i></a>isFromCallback([callbackContext]) ⇒ <code>boolean</code> ⏏</h3>
<p>Returns true, when user is comming back from callback
Comeback is initialised with <code>res.proceedCallback()</code> or quick reply
Usefull for hidding the text, user has already seen</p>
<p><strong>Kind</strong>: Exported function </p>
<table>
<thead>
<tr>
<th>Param</th>
<th>Type</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr>
<td>[callbackContext]</td>
<td><code>string</code></td>
<td><code>null</code></td>
</tr>
</tbody>
</table>
<p><strong>Example</strong> </p>
<pre><code class="lang-javascript">bot.use([<span class="hljs-string">'fooRoute'</span>, <span class="hljs-regexp">/^foo$/</span>], (req, res) => {
<span class="hljs-comment">// set callback, only when this request does not have one</span>
<span class="hljs-keyword">if</span> (!req.isFromCallback()) {
res.text(<span class="hljs-string">'this is the response, you dont want to read again'</span>);
}
});
</code></pre>
<div id="exp_module_callbackMiddleware--proceedCallback"> </div>
<h3 id="proceedcallbackcallbackcontext-⇒-boolean-⏏"><a name="proceedcallbackcallbackcontext-⇒-boolean-⏏" class="plugin-anchor" href="#proceedcallbackcallbackcontext-⇒-boolean-⏏"><i class="fa fa-link" aria-hidden="true"></i></a>proceedCallback([callbackContext]) ⇒ <code>boolean</code> ⏏</h3>
<p>Proceed a callback, when exists
(go to action, where the callback has been previously set)
Returns true, when postback will occur</p>
<p><strong>Kind</strong>: Exported function </p>
<table>
<thead>
<tr>
<th>Param</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>[callbackContext]</td>
<td><code>string</code></td>
<td>the context</td>
</tr>
</tbody>
</table>
<p><strong>Example</strong> </p>
<pre><code class="lang-javascript">bot.use([<span class="hljs-string">'fooRoute'</span>, <span class="hljs-regexp">/^foo$/</span>], (req, res) => {
<span class="hljs-comment">// set callback, only when this request does not have one</span>
<span class="hljs-keyword">if</span> (!res.proceedCallback()) {
res.text(<span class="hljs-string">'this is the followup question'</span>, {
followupAction: <span class="hljs-string">'Continue'</span>
});
}
});
</code></pre>
<div id="exp_module_callbackMiddleware--addCallbackQuickReply"> </div>
<h3 id="addcallbackquickreplyreplytext-⇒-this-⏏"><a name="addcallbackquickreplyreplytext-⇒-this-⏏" class="plugin-anchor" href="#addcallbackquickreplyreplytext-⇒-this-⏏"><i class="fa fa-link" aria-hidden="true"></i></a>addCallbackQuickReply(replyText) ⇒ <code>this</code> ⏏</h3>
<p>Adds "back" quick reply to other replies
(alternative to <code>proceedCallback()</code>)</p>
<p><strong>Kind</strong>: Exported function </p>
<table>
<thead>
<tr>
<th>Param</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>replyText</td>
<td><code>string</code></td>
<td>the default text</td>
</tr>
</tbody>
</table>
<p><strong>Example</strong> </p>
<pre><code class="lang-javascript">bot.use([<span class="hljs-string">'fooRoute'</span>, <span class="hljs-regexp">/^foo$/</span>], (req, res) => {
<span class="hljs-comment">// ability get back to previous context</span>
res.addCallbackQuickReply(<span class="hljs-string">'Go back'</span>);
res.text(<span class="hljs-string">'So, what you want?'</span>, {
barRoute: <span class="hljs-string">'Go to bar'</span>
});
});
</code></pre>
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