What is the difference between middleware and filters in ASP.NET Core?

What is the difference between middleware and filters in ASP.NET Core?

Middleware is a component that is executed on every request in the ASP.NET Core pipeline, while filters are used to run code before or after specific actions or controllers.

Can you give me examples of when to use middleware versus filters?

Sure! Use middleware for cross-cutting concerns like logging or authentication, and filters for action-specific tasks like authorization or caching.

Are there any performance implications when using middleware or filters?

Yes, middleware runs on every request, so it can impact performance if not optimized. Filters are more targeted, so they usually have less overhead.

How do I implement a custom middleware in ASP.NET Core?

To implement custom middleware, create a class with a constructor that takes a RequestDelegate and an Invoke method to handle requests.