Upload & Categorize Files with Supabase Storage and Secure URL Generation

# Supabase Storage File Upload Workflow *works with self-hosted Supabase* ## How it works - Accepts file data (MIME type, filename, base64 content) from other workflows - Automatically routes files to appropriate storage buckets based on file type (images, audio, video, documents) - Uploads files to Supabase Storage using the REST API - Generates secure signed URLs for file access with 30-day expiration - Returns structured success/error responses for downstream processing ## Set up steps - Configure Supabase API credentials in n8n - Create storage buckets in your Supabase project (image-files, audio-files, video-files, document-files) (or choose your own structuring system) - Replace URL paths with your own - Test the workflow using the included form trigger - Remove test form and integrate with your main workflows **Reference:** [Supabase Storage Documentation](https://supabase.com/docs/guides/storage)