What are the different types of middleware in ASP.NET Core?

What are the different types of middleware in ASP.NET Core?

In ASP.NET Core, middleware is software that's assembled into an application pipeline to handle requests and responses. The main types include:

1. Application Middleware: Handles requests and responses directly.
2. Framework Middleware: Provides features like routing and authentication.
3. Custom Middleware: User-defined middleware for specific needs.

Can you give me examples of application middleware?

Sure! Examples of application middleware include:

• Static Files Middleware: Serves static files like HTML, CSS, and JavaScript.
• Routing Middleware: Directs requests to the appropriate endpoint.
• Session Middleware: Manages user sessions.

How do I create custom middleware?

To create custom middleware in ASP.NET Core, you need to:

1. Create a class with a constructor that takes a RequestDelegate.
2. Implement a method that takes HttpContext and calls the next middleware.
3. Register it in the Startup class using app.UseMiddleware<YourMiddleware>().

What is the order of middleware execution?

The order of middleware execution is determined by the order in which they are registered in the Configure method of the Startup class. Middleware is executed in the order they are added for incoming requests and in reverse order for outgoing responses.