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Node.js & Express

Build and operate a real backend REST API: routing, middleware, validation, error handling, and testing. Each course below is independent -- start with whichever one fits what you want to learn.

Node.js and Express Backend Development

Build and operate a real backend REST API: the Node runtime model, Express routing and middleware, validation, structured error handling, security fundamentals, and automated testing.

14 lessons8hintermediate
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  1. 1. The Node.js Runtime Model: Event Loop and Non-Blocking I/O
  2. 2. CommonJS vs ES Modules, npm, and Dependency Management
  3. 3. Asynchronous Programming: Callbacks, Promises, and Async/Await
  4. 4. Express Application Structure and Routing
  5. 5. Middleware: The Request Pipeline
  6. 6. Request Parameters, Query Strings, and Bodies
  7. 7. Input Validation and Rejecting Bad Requests
  8. 8. REST Resource Design and HTTP Status Behavior
  9. 9. Structured Errors: Operational vs. Programmer Errors
  10. 10. Environment Configuration and Safe Logging
  11. 11. Configuration Validation and Startup Failures
  12. 12. Security Fundamentals and Authentication Boundaries
  13. 13. Automated Testing for Routes and Services
  14. 14. Graceful Shutdown and Operational Readiness