RoutePrefixAttribute in ASP.NET 5

Question

I've started a new Web API 2.0 project in ASP.NET 5. I try to create custom RoutePrefixAttribute class but I get this error

The type or namespace name 'RoutePrefixAttribute' could not be found 
(are you missing a using directive or an assembly reference?)   {ProjectName}.DNX Core 5.0

Should I use some other class instead?

Answer 1

There is indeed no RoutePrefixAttribute in MVC 6. Applying a [Route] attribute on a controller will now act as a route prefix:

[Route("api/[controller]/[action]")]
public class ProductsController : Controller
{
    [Route("{id:int}")]
    public JsonResult Details(int id)
    {
        // ...
    }
}

This will match api/Products/Details/42.

Also see this blogpost by Filip W.