Zalo Login Via QR Code icon

Zalo Login Via QR Code

LĐăng nhập Zalo bằng QR code và lưu thông tin vào Credentia
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Overview

This node facilitates logging into the Zalo messaging platform using a QR code. It generates a QR code image that users can scan with their Zalo app to authenticate and obtain login credentials. The node supports using existing credentials or performing a fresh login via QR code scanning. After successful login, it can automatically save new credentials through an API if configured.

Common scenarios for this node include:

  • Automating Zalo account authentication in workflows without manual password entry.
  • Integrating Zalo login into custom automation pipelines.
  • Managing multiple Zalo accounts by generating and storing credentials programmatically.

Practical example:

  • A user wants to automate sending messages on Zalo. They use this node to log in via QR code, then subsequent nodes send messages using the authenticated session.

Properties

Name Meaning
Proxy HTTP proxy URL (e.g., https://user:pass@host:port) to route Zalo API requests through.

Output

The node outputs one item containing:

  • json:

    • success: Boolean indicating if the QR code was generated successfully.
    • message: Informational message about the login process status.
    • fileName: The filename of the QR code image (zalo-qr-code.png).
    • usingExistingCredential: Boolean indicating if existing credentials were used.
    • credentialInstructions: Instructions related to credential usage or creation.
    • Additional fields depending on credential source, such as credential name, ID, type, or file path for saved credentials.
    • autoCreateApi and autoCreateScript: Notes about automatic credential creation via API or script.

  • binary:

    • data: The QR code image data in PNG format encoded as binary, ready for further use or display.

Dependencies

  • Requires access to the Zalo API, either via existing credentials or by scanning the QR code to generate new ones.
  • Optionally requires an API key credential for n8n's own API to automatically create and store new Zalo credentials after login.
  • Supports configuring an HTTP proxy for network requests.
  • Uses external libraries including:
    • A Zalo SDK wrapper for handling login and events.
    • Axios for HTTP requests to n8n API.
  • No internal credential names are exposed; credentials are referenced generically.

Troubleshooting

  • Timeout generating QR code: If the QR code generation times out (default 30 seconds), check network connectivity and proxy settings.
  • No credentials provided: If no credentials are supplied, the node falls back to QR code login but cannot reuse existing sessions.
  • Credential creation failures: Errors creating credentials via the n8n API may occur if the API key or URL is incorrect or unavailable. Verify API credentials and endpoint accessibility.
  • QR code expired or declined: The node logs these events; users should rescan or retry login.
  • Proxy issues: Incorrect proxy URLs or authentication failures can block API requests.
  • To resolve errors, ensure correct proxy configuration, valid credentials, and stable network connection.

Links and References

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