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N8N Tools - YouTube Enhanced

Comprehensive YouTube Data API v3 and Analytics integration for N8N workflows
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Overview

The "Validate Thumbnail" operation in the Thumbnails resource of this YouTube Enhanced node validates a thumbnail image URL by sending it to an external API service for verification. This validation ensures that the thumbnail image meets certain criteria or standards before being used or uploaded to YouTube.

This node is beneficial when you want to programmatically check if a thumbnail image URL is valid and acceptable according to predefined rules, preventing errors or issues during thumbnail upload or display on YouTube.

Practical example:
You have a workflow that generates or selects thumbnail images for your YouTube videos. Before uploading these thumbnails, you use this node's Validate Thumbnail operation to verify each image URL. If the validation passes, you proceed with the upload; otherwise, you handle the error or select a different image.

Properties

Name Meaning
Image URL URL of the image to validate as a thumbnail

Output

  • The output JSON contains the response from the thumbnail validation API. It typically includes details about whether the thumbnail URL is valid and any related metadata or error messages.
  • The node does not output binary data for this operation.

Example output structure (simplified):

{
  "valid": true,
  "message": "Thumbnail is valid",
  "details": { ... }
}

or in case of failure:

{
  "valid": false,
  "message": "Invalid thumbnail URL",
  "error": "Reason for failure"
}

Dependencies

  • Requires an active subscription and a valid API key credential for the external "N8N Tools API" service.
  • The node sends a POST request to the /api/v1/validate endpoint of this API to perform the validation.
  • Proper configuration of the API URL and API key in the node credentials is necessary.
  • The node also uses YouTube API credentials internally but for this operation primarily relies on the external validation API.

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.

  • API validation failure:
    Errors returned from the external validation API will be surfaced. Check the message for details and ensure the image URL is accessible and properly formatted.

  • Network or connectivity issues:
    Ensure that the n8n instance can reach the external API endpoint and that no firewall or proxy blocks the requests.

  • Empty or incorrect Image URL:
    Make sure the "Image URL" property is set and points to a valid image resource.

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