Automation with n8n
Start from zero and learn to automate real business processes with n8n: building workflows, connecting APIs, working with data, building AI agents and keeping it all running in production. Aimed at a middle-level interview.
Stages
n8n basics
From what automation is actually good for to your first working workflow: what n8n is, where it runs, what a workflow is made of and how it connects to external systems.
Triggers and flow logic
Controlling when a workflow starts and which path the data takes: trigger types, webhooks, conditions, loops and sub-workflows.
🔓 Recommended after: n8n basics
Working with data
The part of n8n that trips people up most: the item structure, expressions, transformation nodes, the Code node and files. Once this stage clicks, everything else gets easier.
🔓 Recommended after: Triggers and flow logic
Integrations
n8n's real value is in wiring systems together. Any API through HTTP Request, Google Workspace, messaging platforms, databases, and complete end-to-end scenarios.
🔓 Recommended after: Working with data
AI and agents
The most-asked part of n8n in 2025-2026: the AI components, chains versus agents, tools, memory and RAG. This is what separates n8n from plain automation.
🔓 Recommended after: Integrations
Operations and reliability
The difference between a workflow that works and one you can rely on: error handling, testing and debugging, self-hosting, security and teamwork.
🔓 Recommended after: AI and agents
Interview preparation
Turning knowledge into interview answers: the common questions and how to structure replies, the live practical task, tool-comparison questions, and a portfolio.
🔓 Recommended after: Operations and reliability
📚 Sources and documentation
- n8n official documentationofficialdocs.n8n.io
The primary source every technical claim in this branch was checked against — nodes, expressions, hosting.
- Workflow template libraryofficialn8n.io
Thousands of ready-made workflows. Search here before building something new — a close match usually exists.
- n8n community forumofficialcommunity.n8n.io
Real problems with real solutions. Pasting an error message into search here is the fastest debugging route.