Express Middleware

Express middleware is a function in the Express web application framework for Node.js that processes requests and responses during the handling of web traffic. Middleware sits between the user's request and the final response, allowing developers to add functionality like logging, authentication, or error handling. Each piece of middleware can inspect, modify, or respond to requests before passing them to the next step in the process. This modular approach helps keep code organized and makes it easier to manage complex applications by handling specific tasks in isolated segments.