Description: Middleware registration is the process of adding middleware functions to a web application. In the context of web frameworks, middleware refers to functions that have access to the request object (req), the response object (res), and the next middleware function in the application’s request-response cycle. These functions can perform various tasks, such as modifying the request and response, ending the request, or calling the next middleware function. Middleware registration allows developers to structure their application in a modular and reusable way, facilitating the implementation of features such as authentication, error handling, activity logging, and data manipulation. By registering middleware, the order in which functions are executed can be defined, which is crucial for the application’s flow. Additionally, many web frameworks allow middleware to be registered at the application level or at the route level, providing flexibility in how requests are handled. In summary, middleware registration is a fundamental feature of web application development that enables developers to build robust and scalable web applications efficiently.
