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:

  • Automating Zalo account login for bots or integrations without manual credential input.
  • Refreshing or obtaining new Zalo session credentials securely via QR code.
  • Integrating Zalo login flows in workflows where user interaction is required for authentication.

Practical example:
A workflow that needs to send messages on behalf of a Zalo account can use this node to log in by generating a QR code. The user scans the QR code with their mobile Zalo app, and upon successful login, the node outputs the credentials needed for subsequent API calls.

Properties

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

Output

The node outputs an array with 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 generated QR code image (zalo-qr-code.png).
    • usingExistingCredential: Boolean indicating if existing credentials were used.
    • Additional fields depending on credential usage:
      • If using n8n account credential: instructions about automatic credential creation, credential name, ID, and type.
      • If using existing Zalo credentials: similar info about the credential.
      • If no credentials provided: file path to saved credentials JSON and instructions for manual or automatic credential creation.

  • binary:

    • data: The QR code image data encoded as PNG, ready for download or display.

Dependencies

  • Requires access to the Zalo API via either:
    • An existing Zalo API credential (with cookie, IMEI, user agent, etc.).
    • An n8n account credential that allows creating new Zalo credentials via the n8n API.
  • Uses the zca-js library for interacting with Zalo's SDK.
  • Uses axios for HTTP requests to the n8n API when saving credentials.
  • Optional HTTP proxy support for routing API requests.
  • Requires proper configuration of credentials in n8n for seamless operation.

Troubleshooting

  • Timeout generating QR code:
    If the QR code generation takes longer than 30 seconds, the node throws a timeout error. Check network connectivity and Zalo API availability.

  • No credentials provided:
    The node will generate a QR code but cannot reuse existing sessions. Ensure credentials are set up if you want to avoid repeated logins.

  • Credential creation failures:
    Errors during automatic credential creation via the n8n API may occur due to incorrect API keys, URLs, or network issues. Review logs and verify API credentials.

  • Proxy issues:
    Incorrect proxy settings can prevent communication with Zalo API. Verify the proxy URL format and accessibility.

  • QR code expired or declined:
    The node logs these events; users must scan the QR code promptly and accept the login on their device.

Links and References

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