Get matched route name in Web API

Question

In my Web API handler I need to get the name of the route that matched the request.

public class CurrentRequestMessageHandler : DelegatingHandler
{
    protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        var route = request.GetRouteData().Route;
        //now what?

        return base.SendAsync(request, cancellationToken);
    }
}

Answer 1

Currently there is no way to retrieve the route name of a route in Web API. You can take a look at the HttpRouteCollection source code here for more details. If route name is definitely required for your scenario, you could stick in the route name in the data tokens of a route. (note that currently attribute routing doesn't provide a way to access the data tokens)

Update - 6/23/2014
With latest improvements(5.2 RC) in the area of attribute routing, you can do something like following to insert route names into data tokens.

config.MapHttpAttributeRoutes(new CustomDefaultDirectRouteProvider());

public class CustomDefaultDirectRouteProvider : DefaultDirectRouteProvider
{
    public override IReadOnlyList<RouteEntry> GetDirectRoutes(HttpControllerDescriptor controllerDescriptor, 
        IReadOnlyList<HttpActionDescriptor> actionDescriptors, IInlineConstraintResolver constraintResolver)
    {
        IReadOnlyList<RouteEntry> coll = base.GetDirectRoutes(controllerDescriptor, actionDescriptors, constraintResolver);

        foreach(RouteEntry routeEntry in coll)
        {
            if (!string.IsNullOrEmpty(routeEntry.Name))
            {
                routeEntry.Route.DataTokens["Route_Name"] = routeEntry.Name;

            }
        }

        return coll;
    }
}

Access it like this:
reequest.GetRouteData().Route.DataTokens["Route_Name"]