Until now, we saw the basics of Routing without MVC or web API involved in the form of Middleware Router, RouteBuilder, and MapRoute. It was essential to understand how these concepts work together.
When we create an ASP.NET Core app as a web API, there are certain routing-related functionalities which are essential to know about.
In Chapter 3, Anatomy of ASP.NET Core Web API, we created a simple web API project; looking at the Configure and ConfigureServices methods of the Startup class, only the MVC middleware and service got added. There is no reference to the Routing middleware.
The question that now arises is how does the web API project do all the Routing that is required. The answer lies in the MVC middleware, app.UseMvc(), added in the Configure method.
UseMvc() is a middleware for both MVC and web API projects written by Microsoft&apos...
