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Catalogue / Development

Node.js: Build and Ship an API

From the V8 engine to production: modules, npm, files, asynchronous code, HTTP server, Express, REST APIs, PostgreSQL, authentication, testing, security and deployment of an online store API.

  • Intermediate to advanced
  • 14 lessons
  • 13 h 55 min

A MasterLinux course · Original text

What you will learn

  • Understand how Node.js runs JavaScript on the server (V8, event loop, LTS releases)
  • Organize a project with modules (CommonJS and ES modules), npm, package.json and semantic versioning
  • Read and write files and JSON without blocking the server, with fs/promises and streams
  • Write a native HTTP server, then an Express application with routes, middleware and error handling
  • Design a clean REST API (resources, verbs, status codes, validation, pagination)
  • Connect PostgreSQL with parameterized queries, a connection pool and migrations
  • Authenticate users (hashed passwords, sessions, JWT, secure cookies) and test your code with node:test
  • Secure, configure and deploy a Node API in production (pm2 or systemd, nginx, Docker)

Course content

14 lessons · 13 h 55 min
Section 1 — Node.js fundamentals4 lessons · 3 h 30 min
  1. Node.js: V8 engine, event loop, versions and REPL Preview45 min
  2. Modules et npm : CommonJS, ES modules, package.json et versions sémantiques 55 min
  3. Fichiers et chemins : node:fs/promises, node:path et JSON 50 min
  4. L'asynchrone dans Node : promesses, async/await, EventEmitter et streams 1 h
Section 2 — Servers and APIs5 lessons · 5 h
  1. Un serveur HTTP natif avec node:http : routes, codes et en-têtes 1 h
  2. Express (1) : application, routes, paramètres, req et res 55 min
  3. Express (2) : middlewares, gestion d'erreurs, fichiers statiques et routeurs 1 h
  4. Concevoir une API REST : ressources, verbes, codes, validation et pagination 1 h
  5. Connecter PostgreSQL : pg, requêtes paramétrées, pool et migrations 1 h 5 min
Section 3 — Quality and production3 lessons · 3 h 5 min
  1. Authentification : mots de passe hachés, sessions ou JWT, cookies sécurisés 1 h 5 min
  2. Tests automatisés avec node:test et assert 1 h
  3. Configuration, variables d'environnement, journaux et erreurs en production 1 h
Section 4 — Security and deployment2 lessons · 2 h 20 min
  1. Sécurité d'une API Node : injection, XSS, CORS, limitation de débit, helmet et dépendances 1 h 10 min
  2. Déployer une API Node : pm2 ou systemd, nginx et Docker 1 h 10 min

Requirements

  • The “Web Development: HTML, CSS and JavaScript” course or solid experience with modern JavaScript (functions, objects, promises)
  • Comfortable with a Linux terminal (the “Fundamentals” course is recommended)
  • Basic knowledge of HTTP (request, response, URL) and SQL

Who is this course for?

  • Front-end developers who also want to write the server and the API
  • Computer science students (BTS, DUT, bachelor’s degree, engineering schools) preparing for a back-end internship or first job
  • PHP or Java developers moving to Node.js
  • Freelancers who build APIs for online stores, riads or delivery apps