Building REST APIs with Express.js

Why Express?

Express is the de facto standard server framework for Node.js. It's minimal, flexible, and robust.

Project Structure

One common pitfall is the lack of structure. A good pattern is to separate your concerns: Routes, Controllers, and Services.

        /src
          /controllers
          /routes
          /services
          /models
      

This separation makes testing easier and the codebase more maintainable as it scales.