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Book · forthcoming, in French

Mastering n8n

Automate, integrate and deploy AI agents, from your first workflow to production. A book by Gary Nkweka, founder of WSC Digital. Written in French.

Read chapter 1 (in French)See the contents
Mastering n8n

Why this book

n8n connects your applications and takes over repetitive work. It is powerful, free to host yourself, and full of traps. This book teaches you to build automations that hold up: data, triggers, logic, code, errors, business applications, AI agents, then installing, securing and monitoring an instance in production.

Everything was checked

Every step was carried out on a real n8n instance. Every screenshot and every result comes from a real test. Every fact was checked against its source in October 2026. Where the official documentation says one thing and the software does another, the book says so.

Who it is for

Developers, system administrators, integrators and small business managers who want to automate properly. The examples come from the field, mostly in French-speaking Africa: a shop in Douala, Mobile Money payments, network outages.

Contents

Thirty-three chapters in seven parts, plus appendices. The first four chapters are free to read, in French.

Part I

Getting to know n8n

What n8n is, how to install it to learn, and how to build a first complete workflow.

  1. 1Automation and where n8n fitsFree to read
  2. 2Installing n8n to learnFree to read
  3. 3A first workflow, the editor step by stepFree to read

Part II

The foundations

What you need to build any workflow: data, expressions, triggers, logic, code and errors.

  1. 4Data in n8nFree to read
  2. 5Expressions and data transformation
  3. 6Triggers
  4. 7Flow logic and sub-workflows
  5. 8The Code node and the HTTP Request node
  6. 9Errors, testing and debugging

Part III

Connecting the world

Linking n8n to the company's services: credentials, databases, messaging, business applications and custom nodes.

  1. 10Credentials
  2. 11Databases, tables and files
  3. 12Messaging and collaboration
  4. 13Business applications and APIs
  5. 14Building your own nodes

Part IV

Artificial intelligence

Putting language models to work in reliable workflows: chains, agents, RAG, MCP and evaluations.

  1. 15The building blocks of AI
  2. 16AI agents
  3. 17RAG, or answering from your own documents
  4. 18MCP, or sharing your tools with AI assistants
  5. 19Evaluating and hardening an AI workflow

Part V

Installing and running in production

Moving from a test instance to a solid platform: architecture, deployment, configuration, scaling, backup and monitoring.

  1. 20The architecture of n8n
  2. 21Deploying with Docker Compose, PostgreSQL and Traefik
  3. 22Configuring an instance
  4. 23Scaling up
  5. 24Backing up, upgrading, monitoring

Part VI

Security and governance

Protecting the instance, its secrets and its data, and organising teamwork.

  1. 25Securing an instance
  2. 26Secrets
  3. 27Working as a team

Part VII

Guided projects

Complete builds on the book's own instance, drawing on everything that comes before.

  1. 28Project 1: processing orders end to end
  2. 29Project 2: a customer service assistant
  3. 30Project 3: a production studio on a GPU
  4. 31Project 4: a brand identity
  5. 32Project 5: synchronising business applications
  6. 33Running an automation project

Appendices

  1. AEssential environment variables
  2. BExpressions cheat sheet
  3. CThe n8n command line
  4. DMoving from Zapier or Make to n8n
  5. EFrench–English glossary

The rest of the book will be published soon.

Have your business automated

No time to learn it all? We build your n8n automations, on your own server, and you stay in control. Describe your problem: within 48 hours you know whether it can be done, what it costs and how long it takes.

n8n is a trademark of n8n GmbH. This book is not published or endorsed by n8n GmbH.

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