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Zalo Message Trigger

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Overview

This node acts as a trigger to listen for incoming messages on the Zalo platform, a popular messaging app. It is designed to capture real-time message events either from individual users or group chats, making it useful for automating workflows that respond to new messages on Zalo.

Common scenarios include:

  • Automatically processing or logging user messages received on Zalo.
  • Triggering notifications or other actions when group messages arrive.
  • Building chatbots or customer support automation that reacts instantly to incoming messages.

For example, you could use this node to listen for user messages and then forward them to a CRM system, or monitor group chats for specific keywords and trigger alerts.

Properties

Name Meaning
Event Types Types of messages to listen for. Options: User Messages (listen to messages from users), Group Messages (listen to messages from groups). Multiple selections allowed.
Self Listen Whether to allow listening to messages sent by yourself. Boolean value: true or false.

Output

The node outputs JSON data representing the incoming message event received from Zalo. The output structure contains a message object with details about the message event captured by the webhook.

Example output JSON structure:

{
  "message": {
    // message details as provided by Zalo's API
  }
}

No binary data output is produced by this node.

Dependencies

  • Requires an API key credential to connect to the Zalo platform.
  • Uses the external zca-js library to handle Zalo API interactions and message listening.
  • Needs proper configuration of the webhook URL in n8n to receive incoming message events.
  • Requires valid Zalo credentials including cookie, IMEI, and user agent information for authentication.

Troubleshooting

  • Connection failures: If the node throws "Zalo connection failed," verify that the provided credentials are correct and have not expired.
  • No API instance found: This error indicates invalid or incomplete credentials; ensure all required authentication details are supplied.
  • Webhook not triggered: Confirm that the webhook URL is correctly set up and publicly accessible so Zalo can send events.
  • Listening to self messages: If you do not receive messages sent by yourself, check the "Self Listen" property and enable it if needed.

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