Overview
The node integrates with the CodeQR API to perform operations related to QR codes. Specifically, the "Update" operation for the "QR Code" resource allows users to modify an existing QR code by specifying its unique identifier. This is useful in scenarios where a QR code's data or properties need to be changed after creation, such as updating the linked URL, changing expiration settings, or modifying metadata.
Practical examples include:
- Updating a marketing campaign QR code to point to a new landing page.
- Changing the expiration date of a QR code used for event access.
- Modifying QR code details without generating a new one.
Properties
| Name | Meaning |
|---|---|
| Authentication | Method of authenticating with the CodeQR API. Options: Access Token |
| QR Code ID | The unique identifier of the QR code to update. This is required to specify which QR code to modify |
Output
The node outputs a JSON array containing the response from the CodeQR API after performing the update operation. The structure typically includes updated QR code details such as its ID, updated fields, status, and any relevant metadata returned by the API.
If the node supports binary data output (not indicated here), it would represent the QR code image or related binary content; however, based on the provided information, the output is JSON only.
Dependencies
- Requires an active connection to the CodeQR API.
- Needs an API authentication token (access token) configured in n8n credentials to authorize requests.
- Proper network access to the CodeQR service endpoint.
Troubleshooting
Common Issues:
- Missing or invalid QR Code ID: The node requires a valid QR code identifier to update; ensure this is correctly provided.
- Authentication failures: Ensure the access token is valid and has not expired.
- Unsupported operation errors: If the operation or resource is incorrectly specified, the node will throw an error indicating unsupported operation.
Error Messages:
"Operação não suportada."with description"A função "<operation>" para o recurso "<resource>" não é suportada!"means the requested operation-resource combination is not implemented. Verify that "Update" is selected for the "QR Code" resource.- API errors returned from CodeQR (e.g., invalid token, not found) should be checked in the node execution logs and resolved by verifying credentials and input parameters.
Links and References
- CodeQR API Documentation (Replace with actual URL if available)
- n8n Documentation on Creating Custom Nodes