What is the difference between middleware and routes in Express.js?

Can you explain the difference between middleware and routes in Express.js?

Sure! In Express.js, routes are used to define the endpoints of your application, while middleware functions are used to process requests before they reach the route handlers.

Can you give me an example of middleware?

Absolutely! A common example of middleware is the body-parser middleware, which parses incoming request bodies and makes the data available in req.body.

How do I use middleware in my Express app?

You can use middleware by calling app.use(middlewareFunction) before your route definitions. This way, the middleware will run for every request.

Are there any built-in middleware functions in Express?

Yes, Express comes with several built-in middleware functions like express.json() for parsing JSON requests and express.static() for serving static files.