In the world of .NET programming, the tag that adds the declaration information of the various elements such as classes, methods, and enum to programs are called as attributes.
ASP.NET Web API 2 introduced the concept of Attribute-based Routing, giving more control over the URIs in a web API. This helps us to easily build URIs that have hierarchies of resources.
In ASP.NET Core apps, Attribute-based Routing is provided by default. In the Configure method of the Startup class, the line app.UseMvc() indicates to include the MVC middleware in the request processing pipeline.
In the section ASP.NET Core Web API and Routing, we explained how Attribute-based Routing is implemented by default unlike ASP.NET Web API 2, where it had to be explicitly enabled in the configuration.
AttributeRouting.CreateAttributeMegaRoute does this heavy work of iterating through...