How to get a list of middlewares in ASP.NET Core

Question

How do I get a list of active middlewares? How do I get a list of middlewares for specific url (each url may have a different set of middlewares added to the pipeline)?

I would like to know which middlewares are being added by using some of the common builder extensions like UseMvc() or app.UseIdentity();

I know I could check the source code of each extension. Is there a runtime method to get this?

Answer 1

No, you can't. When you add a middleware to the pipeline, it's resolved to a Func<RequestDelegate, RequestDelegate>. The components are saved in a private field in the ApplicationBuilder implementation. You could however bake an extension method with some reflection magic to determine the actual middleware type, but it's not trivial.