Exercise: Build a Transactional Outbox Pattern in n8n
A hands-on editorial exercise: build a transactional outbox pattern in n8n so an event is only marked delivered after the downstream system confirms it.
Articles tagged
API integration
n8n Code Node JavaScript: Debugging Tutorial
A tutorial on n8n code node JavaScript: execution modes, item data access, async code, console.log debugging, and production item-linking pitfalls.
The n8n Wait Node: Handling Retries and Rate-Limited APIs
A practical walkthrough of the n8n Wait node for pausing a workflow against a rate-limited API and resuming with the same in-flight data, plus retry and backoff patterns.
n8n Loop Over Items Pagination: Debugging Paginated API Pulls
A practical tutorial on n8n loop over items pagination: check built-in pagination, build a manual Loop Over Items pattern, and debug missed pages or infinite loops.
n8n MCP Integration: A Hands-On Tutorial
A step-by-step n8n MCP integration tutorial covering the MCP Server Trigger node, prerequisites, troubleshooting, and what changes when a whole team relies on it.
API rate limit exceeded in n8n: fix 429s without duplicate writes
Fix API rate limit exceeded errors in n8n: read the 429, batch requests, retry after the limit window and use idempotency keys to avoid duplicate writes.
n8n MCP client setup: connect Claude or ChatGPT safely
A step-by-step tutorial for an n8n mcp client connection from Claude or ChatGPT, covering the Server URL, OAuth versus API key, per-workflow exposure and troubleshooting.
Debug n8n Workflows Before Blaming the Integration
A practical four-layer method for isolating whether an n8n workflow failure comes from credentials, input and mappings, the external API, or your own workflow logic.
n8n vs Zapier: A Practical Webhook-to-API Comparison
Compare n8n and Zapier for the same webhook-to-API workflow, including credentials, mapping, debugging, deployment, and billing units.
n8n Workflow Testing Checklist: What to Verify Before Real Use
A practical checklist for testing sample data, branches, API failures, execution details, and automatic error handling before using an n8n workflow.
Build and debug your first trigger-to-action workflow in n8n
A beginner tutorial for building a Manual Trigger → HTTP Request → Edit Fields workflow, mapping a JSON title, and tracing incorrect output node by node.
Retrying Failed n8n HTTP Requests Safely
A practical guide to inspecting failed requests, separating recovery logic, bounding retries, pacing rate-limited traffic, and filtering duplicate inputs before an API call can create side effects.