Actions33
- Mini Program Actions
- Official Account Actions
- WeChat Pay Actions
- WeChat Work Actions
Overview
The "Create QR Code" operation for the "Official Account" resource in this WeChat Enhanced node allows users to generate a temporary QR code associated with a specific scene string. This QR code can be scanned by users to trigger actions or link to content within the WeChat Official Account ecosystem.
This operation is useful when you want to create dynamic, time-limited QR codes for marketing campaigns, event check-ins, user authentication flows, or any scenario where a temporary QR code tied to a particular context (scene) is needed.
Example use cases:
- Generating a QR code that encodes a unique campaign identifier, expiring after a set duration.
- Creating a QR code for event attendees that expires after the event ends.
- Producing a QR code for temporary access to a service or promotion.
Properties
| Name | Meaning |
|---|---|
| Scene String | The scene string parameter encoded into the QR code; identifies the QR code's context. |
| Expire Seconds | The lifetime of the QR code in seconds before it expires. Default is 604800 (7 days). |
Output
The output JSON contains the response from the WeChat API for creating the QR code. Typically, this includes data such as:
- A ticket or URL representing the generated QR code.
- Expiration information.
- Any metadata returned by the API about the QR code.
If the node supports binary output for the QR code image, it would represent the actual QR code image data, but based on the static analysis, the output here is JSON containing the QR code details rather than raw image data.
Dependencies
- Requires an active subscription and valid API key credential for the external N8N Tools API service.
- Requires credentials for authenticating with the WeChat Official Account API.
- The node internally uses a helper class (
WeChatApi) to interact with WeChat services. - The node performs a validation request to the external API service before executing operations.
Troubleshooting
- Invalid subscription or API key error: If the node throws an error indicating invalid subscription or API key, verify that the API key credential is correctly configured and active.
- Unsupported operation error: If an unsupported operation error occurs, ensure the selected operation matches the capabilities of the node and the resource.
- API request failures: Network issues or incorrect parameters may cause API calls to fail. Check the input properties for correctness, especially the scene string and expiration time.
- JSON parsing errors: Some operations require JSON-formatted inputs; ensure these are valid JSON strings if applicable.