Why isn't my ASP.NET API route being called, is my URL not correct? - asp.net

Question

I have a new ASP.NET MVC 5 application.
I added an /api folder in my controllers folder and added a MVC2 API controller.
My global.asax has:
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
RouteConfig.RegisterRoutes(RouteTable.Routes);
GlobalConfiguration.Configure(WebApiConfig.Register);
}
My controller looks like:
public class UsersController : ApiController
{
[HttpGet]
[ActionName("User")]
public IToken GetUser()
{
return new User();
}
}
Now I get a 404 resource cannot be found error when I go to:
http://localhost:53323/api/users/user
http://localhost:53323/api/users/getuser
What could the problem be?
Update
My MVC route config:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
My API route config:
config.MapHttpAttributeRoutes();
//config.Routes.MapHttpRoute(
// name: "DefaultApi",
// routeTemplate: "api/{controller}/{id}",
// defaults: new { id = RouteParameter.Optional }
//);
config.Routes.MapHttpRoute(
name: "ActionApi",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new { id = RouteParameter.Optional }
);

Answer 1

Seems like you are missing correct registration in your Application_Start().
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
WebApiConfig.Register(GlobalConfiguration.Configuration); // This should be above the default route registration.
RouteConfig.RegisterRoutes(RouteTable.Routes);
//GlobalConfiguration.Configure(WebApiConfig.Register); // Remove this line.
}

Answer 2

Try using attribute routing on your controller and action methods.
Example
[RoutePrefix("api/users")]
public class UsersController : ApiController
{
[HttpGet]
[Route("user")]
public IToken GetUser()
{
return new User();
}
}