node-red-contrib-chatbot/nodes/chatbot-context.html

REDBot a Chat bot for a full featured chat bot for Telegram, Facebook Messenger and Slack. Almost no coding skills required

<script type="text/javascript">
  $.RedBot.registerType('chatbot-context', {
    category: $.RedBot.config.name,
    color: '#FFCC66',
    defaults: {
      command: {
        value: 'intent'
      },
      fieldValue: {
        value: ''
      },
      fieldType: {
        value: 'str'
      },
      fieldName: {
        value: '',
        validate: function(value) {
          if (this.command !== 'intent' && $.RedBot.validate.isEmpty(value)) {
            return false;
          }
          return true;
        }
      }
    },
    inputs: 1,
    outputs: 1,
    paletteLabel: 'Context',
    icon: 'chatbot-context.png',
    label: function() {
      return 'Context' + (this.command != null ? ' (' + this.command + ')' : '');
    },
    oneditprepare: function() {
      $('#node-input-fieldValue').typedInput({
        'default': 'str',
        types: ['str','num','bool', 'json'],
        typeField: $('#node-input-fieldType')
      });
      $('#node-input-command').change(function() {
        var command = $(this).val();
        $('.only-for').hide();
        $('.only-for-' + command).show();
      });
      $('.only-for').hide();
      $('.only-for-' + this.command).show();
    },
    oneditsave: function() {
      $("#node-input-template").val(this.editor.getValue());
      delete this.editor;
    }
  });
</script>

<script type="text/x-red" data-template-name="chatbot-context">
<div class="form-row">
  <label for="node-input-command">Command</label>
  <select id="node-input-command" placeholder="Language to match" style="width: 250px;">
    <option value="get">Get</option>
    <option value="set">Set</option>
    <option value="delete">Delete</option>
    <option value="intent">Store values from intent</option>
  </select>
</div>
<div class="form-row only-for only-for-set only-for-get only-for-delete">
  <label for="node-input-fieldName">Variable</label>
  <input type="text" id="node-input-fieldName" placeholder="Variable" style="width:250px;">
</div>
<div class="form-row only-for only-for-set">
  <label for="node-input-fieldValue"><i class="icon-pencil"></i> Value</label>
  <input type="text" id="node-input-fieldValue" placeholder="" style="width:250px;">
  <input type="hidden" id="node-input-fieldType">
</div>
<div class="form-row only-for only-for-intent">
  Store variables extracted from a NPL service (like <b>Alexa</b>, <b>Dialogflow.com</b>, <b>Recast.ai</b>) from an <i>intent</i> message
  type or from a <i>response</i> message type (a <b>Slack</b> response to a Block or Dialog) 
</div>
</script>

<script type="text/x-red" data-help-name="chatbot-context"><p>Get, set or delete an element in the chat context.</p>
<p>The chat context is a volatile namespace for variables related to the current chat user, some variables are predefined (like <em>firstName</em>, <em>lastName</em>, <em>topic</em>, <em>chatId</em>, etc).</p>
<p>Typically this node is used to manually set the <em>topic</em> of the user before or after entering a <a href="https://www.notion.so/db8481a702b6491093f7ea53d765129e">Rivescript node</a>  or to store the extracted variables of an <a href="https://www.notion.so/b4bd4f8db5d243d487430d073c35992b">Intent payload</a> .</p>
<p>For example, nodes like <a href="https://www.notion.so/84b9ea66d20743fd9cf45d3de5f17693">Dialogflow node</a>  can extract the <em>intent</em> from a sentences along with some variables (numbers, dates, etc). Chaining a <a href="https://www.notion.so/24a646bff58b4edfb249f1d27384230f">Context node</a>  stores these vars in the chat context</p>
<p><img src="https://s3.us-west-2.amazonaws.com/secure.notion-static.com/d13e4586-3e43-4549-aad8-d7139cab26dc/context-example-1.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIAT73L2G45EIPT3X45%2F20230218%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20230218T124909Z&X-Amz-Expires=3600&X-Amz-Signature=1479f5fe3acc186f3cb336ec77867de3228a17a11a6ab979e5bcc7ea73aa6956&X-Amz-SignedHeaders=host&x-id=GetObject" alt="Store Intent vars"></p>
<p>Available parameters for the <code>msg.payload</code></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody><tr>
<td>command</td>
<td>string</td>
<td>Operation to do on the context: <em>get</em>, <em>set</em>, <em>delete</em>, <em>intent</em></td>
</tr>
<tr>
<td>fieldType</td>
<td>string</td>
<td>Type of field to set. Required for command: <em>set</em>. Can be: <em>str</em>, <em>num</em>, <em>bol</em>, <em>json</em>.</td>
</tr>
<tr>
<td>fieldValue</td>
<td>string</td>
<td>The value to be set. Required for command: <em>set</em></td>
</tr>
<tr>
<td>fieldName</td>
<td>string</td>
<td>The name of the chat context variable. Required for command: <em>set</em>, <em>get</em>, <em>delete</em></td>
</tr>
</tbody></table>
<p>This node is available for all platforms.</p>
</script>