Production-Safe n8n Workflow: Google Sheets → Drive → MySQL (YouTube Intake)
This post documents a complete intake & validation pipeline built with n8n.
Core objective: Ensure that only valid, unique, and file-available YouTube upload jobs enter the system.
What’s covered
  • Google Sheets date-based intake
  • Data sanitization & validation
  • Google Drive file existence check
  • Merge behavior (Combine by Position)
  • Idempotency key strategy
  • MySQL schema & duplicate prevention
  • Why this workflow is safe to run repeatedly
Included files
  • ✅ Workflow JSON
  • ✅ MySQL table schema
  • ✅ Installation guide
  • ✅ Sample input data
This is designed as a foundation workflow — the actual YouTube upload worker comes next.
If you’re learning n8n for real-world systems (not demos), this pattern is worth mastering.
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Hans Lim
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Production-Safe n8n Workflow: Google Sheets → Drive → MySQL (YouTube Intake)
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