What is Next.js middleware and how do I use it?

What is Next.js middleware and how do I use it?

Next.js middleware allows you to run code before a request is completed. It can be used for tasks like authentication, redirects, and more.

Can you give me an example of how to implement middleware in a Next.js app?

Sure! You can create a middleware file in the pages directory. For example, in pages/_middleware.js, you can add your logic to handle requests.

What are some common use cases for using middleware?

Common use cases include user authentication, logging requests, handling redirects, and modifying response headers.

Is middleware supported in both API routes and pages?

Yes, middleware can be used in both API routes and page requests in Next.js.