Description: Middleware patterns refer to common practices and structures used to organize and implement middleware functions in web applications. In the context of web development, middleware acts as an intermediary layer that processes HTTP requests before they reach the final routes. These patterns allow developers to efficiently manage application logic, facilitating code reuse and separation of concerns. Middleware patterns can include functions such as authentication, error handling, request logging, and data analysis. By following these patterns, developers can create more scalable and maintainable applications, as each middleware function can be developed and tested independently. Additionally, implementing these patterns promotes clarity in data flow and application logic, resulting in cleaner and more understandable code. In summary, middleware patterns are essential for effectively structuring web applications, enabling agile and organized development.