What are some examples of middleware in Express.js?

Can you explain what middleware is in Express.js?

Middleware in Express.js is a function that receives the request and response objects, and can modify them or end the request-response cycle.

What are some common examples of middleware used in Express?

Common examples include body-parser for parsing request bodies, morgan for logging requests, and cors for enabling Cross-Origin Resource Sharing.

How do I use body-parser in my Express app?

You can use body-parser by installing it via npm and then requiring it in your app. For example: const bodyParser = require('body-parser'); app.use(bodyParser.json());.

Can I create my own middleware?

Yes, you can create your own middleware by defining a function that takes req, res, and next as parameters, and then calling next() to pass control to the next middleware.