When a request comes in to your ASP.NET site, it's routed through a series of message handlers (in ASP.NET Web API) or modules (in ASP.NET MVC), each of which performs some operation on the request.

The ASP.Net Core MVC framework enables you to build applications that are loosely-coupled, responsive, fast and easier to test and maintain ASP.Net Core MVC is a cross-platform web application ...