🔍⭐What is Middleware? What Does It Do?

Middleware is software that sits between an application and client requests, processing these requests in a specific way before passing them to the next stage. It typically operates between the request sent by the client and the response returned by the server.

Purposes of Middleware:

🚀 Filtering requests: For example, blocking users who have not completed authentication.

🛡️ Ensuring security: Handling authorization, data validation, and attack prevention.

📊 Logging and monitoring: Keeping a record of incoming API requests.

⚙️ Data processing: Modifying requests or responses (e.g., converting to JSON format).

🌐 CORS management: Controlling requests coming from different domains.

✅ In short: Middleware is a critical mechanism that intervenes at different stages of an application to ensure that requests are processed securely, correctly, and efficiently.