What is the architecture of an Express.js application?

What is the architecture of an Express.js application?

The architecture of an Express.js application typically follows the Model-View-Controller (MVC) pattern, where the model handles data, the view manages the user interface, and the controller processes user input.

Can you explain the role of middleware in Express.js?

Middleware in Express.js functions as a bridge between the request and response cycle. It can modify the request, end the request-response cycle, or call the next middleware function.

What are some common middleware used in Express.js?

Common middleware in Express.js includes body-parser for parsing request bodies, cookie-parser for handling cookies, and morgan for logging requests.

How do I structure my Express.js project?

A typical structure includes folders for routes, models, views, and middleware, along with a main app file (usually app.js or server.js) to initialize the application.