What is middleware and how is it commonly used in web development?

What is middleware and how is it commonly used in web development?

Middleware is software that acts as a bridge between different applications or services. In web development, it's often used to handle requests and responses, manage sessions, and perform tasks like authentication and logging.

Can you give me some examples of middleware in action?

Sure! Common examples include Express.js middleware for Node.js, which can handle routing and request parsing, and middleware in Django for session management and security.

How do I implement middleware in my web application?

To implement middleware, you typically define a function that takes a request and response object, along with a next function to pass control to the next middleware. You then register this function in your application’s middleware stack.

What are the benefits of using middleware?

Middleware helps in organizing code, promoting reusability, and separating concerns, making your application easier to maintain and scale.