WeChat Enhanced

Overview

The node "WeChat Enhanced" provides comprehensive integration with various WeChat services, including Mini Programs, Official Accounts, WeChat Pay, and WeChat Work. Specifically, for the Official Account resource and the Get Media operation, this node allows users to retrieve media files previously uploaded or associated with a WeChat Official Account.

This operation is useful when you need to programmatically access images, videos, or other media stored in your Official Account for further processing, display, or archival purposes within an n8n workflow.

Practical example:
You have an Official Account where you upload promotional images or videos. Using this node's Get Media operation, you can fetch these media files automatically and use them in subsequent workflow steps, such as sending them in messages, saving to cloud storage, or analyzing content.

Properties

Note: The property is required and expects a string representing the media ID.

Output

• The output contains a json field with the data returned by the WeChat API for the requested media.
• The exact structure depends on the media type and the API response but generally includes metadata and the media content or a URL to access it.
• If the media is binary (e.g., image or video), the node likely returns the media content encoded appropriately or a reference to it, enabling further binary handling downstream.

Dependencies

• Requires valid credentials for accessing the WeChat Official Account API via an external service called "N8N Tools API".
• The node validates the subscription and API key against this external API before performing operations.
• Proper configuration of API keys and OAuth tokens for WeChat Official Account access is necessary.
• The node uses an internal helper class (WeChatApi) to interact with WeChat endpoints.

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 configured in n8n is correct and active.

• Unsupported operation error:
  This node supports only predefined operations. Ensure the operation name is exactly "getMedia" for this use case.

• Media not found or invalid Media ID:
  If the media ID does not exist or is incorrect, the WeChat API will return an error. Double-check the media ID value.

• Network or permission issues:
  Ensure that the n8n instance has network access to the external API and that the WeChat Official Account permissions allow media retrieval.

Links and References

• WeChat Official Account API Documentation
• WeChat Media Management
• n8n Documentation - Creating Custom Nodes

If you need details about other operations or resources, feel free to ask!