What are the best practices for using middleware in Node.js?

What are the best practices for using middleware in Node.js?

Some best practices include keeping middleware modular, using error handling middleware, and ensuring proper order of execution.

Can you explain why the order of middleware is important?

Yes, the order is crucial because middleware functions are executed in the order they are defined. If authentication middleware is placed after route handling, it won't protect those routes.

What is error handling middleware?

Error handling middleware is a special type of middleware that catches errors from previous middleware and sends a response to the client.

How can I create custom middleware?

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