Actions20
- Message Actions
- Contact Actions
- Ticket Actions
- Session Actions
- Opportunity Actions
Overview
This node integrates with a WhatsApp API to manage WhatsApp sessions and send messages. Specifically, the "Show QR Code" operation under the "Session" resource retrieves the QR code for a given WhatsApp session ID. This QR code is typically used to authenticate or link a WhatsApp client session.
Common scenarios where this node is useful include:
- Automating WhatsApp session management by programmatically retrieving the QR code needed for user authentication.
- Integrating WhatsApp messaging capabilities into workflows that require session control.
- Supporting multi-session environments where different WhatsApp instances are managed via their session IDs.
For example, after creating a WhatsApp session, you can use this node to fetch the QR code image that users scan with their WhatsApp app to start the session.
Properties
| Name | Meaning |
|---|---|
| WhatsApp ID | The numeric identifier of the WhatsApp session for which to show the QR code. |
Output
The output JSON contains the response from the WhatsApp API endpoint that provides the QR code for the specified session. This typically includes data representing the QR code image or a URL to it.
The exact structure depends on the external API's response but generally will be a JSON object containing QR code information necessary for client-side display or further processing.
No binary data output is indicated for this operation.
Dependencies
- Requires an API key credential for authenticating requests to the WhatsApp API service.
- The node uses the base URL and instance ID configured in the credentials to build API request URLs.
- The WhatsApp API service must support endpoints for session management including QR code retrieval.
Troubleshooting
Common issues:
- Invalid or missing WhatsApp session ID may cause errors or empty responses.
- Incorrect or expired API credentials will result in authentication failures.
- Network connectivity problems can prevent successful API calls.
Error messages:
- Authentication errors usually indicate invalid API keys; verify and update credentials.
- "Session not found" or similar errors suggest the provided WhatsApp ID does not exist or is inactive.
- JSON parsing or unexpected response errors may indicate changes in the external API.
To resolve these, ensure the WhatsApp ID is correct, credentials are valid, and the external API is reachable.
Links and References
- WhatsApp Business API Documentation
- Refer to your specific WhatsApp API provider’s documentation for details on session and QR code endpoints.