Overview
This node is designed to interact with the Zalo platform by sending user email information and receiving webhook notifications. It is useful in scenarios where you want to register or verify a user's email with Zalo and handle asynchronous events via webhooks. For example, it can be used to:
- Register an email address with Zalo for notification or authentication purposes.
- Set up a webhook URL to receive event callbacks from Zalo.
- Customize HTTP request headers such as proxy and user agent for network routing or identification.
Practical applications include integrating Zalo login or messaging services into workflows, automating user verification, or handling real-time updates from Zalo through webhooks.
Properties
| Name | Meaning |
|---|---|
| The user's email address to be sent to Zalo. This is a required string input. | |
| Proxy | Optional HTTP/HTTPS proxy URL (including credentials if needed) to route the request through. |
| User Agent | Optional custom User-Agent string to be sent with the HTTP request. |
| Webhook URL | URL endpoint to receive webhook POST requests from Zalo, enabling asynchronous event handling. |
Output
The node outputs JSON data containing the response from the Zalo service after sending the email and related information. The output includes:
- Confirmation of the request status.
- Any data returned by Zalo, such as registration confirmation or error messages.
- If applicable, details about the webhook setup or received events.
No binary data output is indicated in the source code.
Dependencies
- Requires an active internet connection to communicate with Zalo's API endpoints.
- Needs proper configuration of the webhook URL to receive POST requests from Zalo.
- May require valid API authentication tokens or credentials configured in n8n (not explicitly shown in the code but typical for such integrations).
- Supports optional proxy configuration for network routing.
- No external npm packages are explicitly imported; all logic appears self-contained or uses standard Node.js modules.
Troubleshooting
Common Issues
- Invalid or missing email: Since the email property is required, omitting it will cause the node to fail.
- Incorrect webhook URL: If the webhook URL is not reachable or improperly configured, webhook events from Zalo will not be received.
- Proxy misconfiguration: Providing an invalid proxy URL may prevent the node from connecting to Zalo.
- User Agent issues: Some servers might reject requests with unusual or empty user agents; setting a proper user agent string can help.
- Network errors: Firewall or network restrictions could block outgoing requests to Zalo.
Error Messages
- Errors related to HTTP request failures (e.g., timeouts, DNS resolution errors) indicate connectivity problems.
- Authentication errors suggest missing or invalid API credentials.
- Validation errors on the email field indicate improper input format.
To resolve these, ensure all required properties are correctly set, the webhook URL is publicly accessible, and any necessary credentials are properly configured in n8n.
Links and References
- Zalo Official Developer Documentation
- n8n Documentation - Creating Custom Nodes
- HTTP Proxy Configuration
Note: The above summary is based solely on static analysis of the provided obfuscated source code and given property definitions, without runtime execution or access to internal credential names.