Supabase storage tutorial: Upload, fetch, sign & list files

by Alok Kumar ✓ · 1,061 views · created 2025-09-03 · File Management

What this workflow does

This workflow has 8 nodes and runs when someone submits an n8n form (“Supabase Storage File Upload”) (plus 3 other triggers). It uses only n8n's built-in nodes.

How it runs

Trigger: When someone submits an n8n form (“Supabase Storage File Upload”) (plus 3 other triggers).

1. upload_to_supabase_storage (HTTP Request): calls an HTTP API (POST)
2. fetch_file_to_review (HTTP Request): calls an HTTP API
3. get_sign_file_for_temp_access (HTTP Request): calls an HTTP API (POST)
4. list_all_the_object (HTTP Request): calls an HTTP API (POST)

Before you upgrade to n8n 3.0

Nodes used (3)

• HTTP Requestn8n-nodes-base.httpRequest
• n8n Form Triggern8n-nodes-base.formTrigger
• Manual Triggern8n-nodes-base.manualTrigger

From the author

Learn Supabase Storage Fundamentals with n8n This template demonstrates how to integrate Supabase Storage with n8n for uploading, fetching, generating temporary signed URLs, and listing files. It’s a beginner-friendly workflow that helps you understand how to…

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