ASP.NET Core Request Pipeline

With ASP.NET to ASP.NET Core lot of things has changed. ASP.NET had a request processing pipeline with lots of events such as BeginRequest, EndRequest etc. With Core the architecture was changed.

This is how ASP.NET Core application is initialized

ASP.NET Core now has the concept of Middlewares. You can have many middlewares as you need and each of them will execute one after the other.

Fundamentals of Middleware

https://docs.microsoft.com/en-us/aspnet/core/fundamentals/middleware/?view=aspnetcore-2.2

You can also write your own custom middleware

https://docs.microsoft.com/en-us/aspnet/core/fundamentals/middleware/write?view=aspnetcore-2.2