Eric Vogel covers some of the new features in ASP.NET MVC 5.1. In this first of a two-part series, he takes a good, long look at some new attribute routing options.

Enabling attribute based routing With MVC 5 and attribute based routing, you gain finer control of your routes at both the controller and action level.

ASP.NET MVC 5 introduces the same attribute based routing used by Web API 2. This optional syntax allows routes to be registered declaratively instead of by manipulating a RouteCollection.

Handle unknown actions elegantly in ASP.NET 5 by creating routes that dynamically map to the views in your application.

Data tokens are a useful feature of the ASP.NET Core MVC routing system, as they allow you to map routes to arbitrary values. Let’s understand this with an example.