What is the difference between middleware and routes in Express?

What is the difference between middleware and routes in Express?

In Express, middleware functions are functions that have access to the request, response, and next middleware function. They can modify the request and response objects, end the request-response cycle, or call the next middleware in the stack. Routes, on the other hand, are specific endpoints defined to handle requests to a particular path.

Can you give me an example of middleware?

Sure! A common example of middleware is the body-parser middleware, which parses incoming request bodies in a middleware before your handlers, available under the req.body property.

How do I define a route in Express?

You can define a route in Express using the app.get(), app.post(), etc. methods. For example: app.get('/users', (req, res) => { res.send('User list'); }); defines a GET route for '/users'.

Can middleware be used with routes?

Yes, middleware can be used with routes. You can specify middleware functions as additional arguments in route definitions. For example: app.get('/users', middlewareFunction, (req, res) => { res.send('User list'); });.