Templates / Create structured logging system with Supabase and Log4j2-style levels

Create structured logging system with Supabase and Log4j2-style levels

Ready for 3.0

by Elodie Tasia ✓ · 286 views · created 2025-09-13 · Engineering

Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.

What this workflow does

This workflow has 7 nodes and runs when another workflow calls it (plus 1 other trigger). Along the way it connects Supabase.

How it runs

Trigger: When another workflow calls it (plus 1 other trigger).

  1. Create Log (Supabase): uses Supabase
  2. Log Fatal (Code): runs custom JavaScript code
  3. Call Logger SubWorkflow (Execute Sub-workflow): calls another n8n workflow
  4. Log Info (Code): runs custom JavaScript code
  5. Call Logger SubWorkflow (Execute Sub-workflow): calls another n8n workflow

Services it uses

Supabase

Before you upgrade to n8n 3.0

Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.

Nodes used (5)

From the author

Create centralized, structured logs directly from your n8n workflows, using Supabase as your scalable log database. Whether you're debugging a workflow, monitoring execution status, or tracking error events, this template makes it easy to log messages in a…

Excerpt from Elodie Tasia's description on n8n.io.

View the original on n8n.io → Check your own copy

Get the weekly “what broke” email

New templates, newly broken ones, and n8n release changes. One short email a week.

Form not loading? Subscribe here.