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Overview

This node operation allows you to update the thumbnail image of a specific collection in the system. It is useful when you want to visually represent or refresh the thumbnail associated with a collection, such as updating the cover image for a document group or project folder.

Typical use cases include:

  • Changing the thumbnail image after rebranding or updating the collection's content.
  • Setting an initial thumbnail image when creating a new collection.
  • Automating thumbnail updates based on external triggers or workflows.

For example, if you have a collection representing a product catalog, you can update its thumbnail to reflect the latest product image or promotional banner.

Properties

Name Meaning
Collection ID The unique identifier (ID) of the collection whose thumbnail you want to update.
Additional Options A set of optional parameters:
- Timeout: Time in seconds to wait for the request before timing out.
- File: The new thumbnail image file data to upload (typically binary or base64 encoded).

Output

The output will contain the JSON response from the API after attempting to update the collection thumbnail. This typically includes confirmation of success or details about the updated thumbnail resource.

If the operation supports binary data for the file upload, the node handles sending the file as multipart/form-data, but the output itself is JSON metadata about the update result.

Dependencies

  • Requires an API key credential configured in n8n to authenticate requests to the backend service.
  • The backend service must support multipart/form-data uploads for the thumbnail image.
  • Proper permissions to modify the specified collection are required.

Troubleshooting

  • Invalid Collection ID: If the collection ID does not exist or is incorrect, the API will return an error indicating the collection was not found. Verify the collection ID.
  • File Upload Issues: Ensure the file provided is correctly formatted and accessible. The file should be properly encoded or referenced according to the node's input requirements.
  • Timeouts: If the operation times out, consider increasing the timeout value in additional options.
  • Permission Denied: Lack of sufficient permissions to update the collection thumbnail will cause authorization errors. Check user roles and API key permissions.

Links and References

  • Refer to your backend API documentation for details on the /collections/{collection_id}/thumbnail endpoint and expected payload formats.
  • For multipart file uploads, see general HTTP multipart/form-data standards.

Discussion