Asp.NET Web Api 2 Routing parameters

Question

I have a following route:

 config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{service_name}/{controller}/{id}",
                defaults: new { service_name = "identity", id = RouteParameter.Optional }
            );

I want this route to work only with following pattern (service name should always be identity):

api/identity/{anyController}/{id}

Now I could accomplish this by simply changing my route template to

routeTemplate: "api/identity/{controller}/{id}",

but then I would not be able to read "service_name" from Request.GetRouteData(); since it's not named parameter.

Is there a simpler way to do this, rather than creating an ActionFilter which will filter all requests who's service name is not "Identity" in this case.

Can not understand, if you change to "api/identity/{controller}/{id}" there is not service_name)) — Elvin Mammadov
– Elvin Mammadov, Commented Aug 29, 2016 at 8:31
@ElvinMammadov if you hardcode template to api/identity, when you try to check service_name in the RouteData dictionary, there is no entry with service_name key. — Robert
– Robert, Commented Aug 29, 2016 at 8:34
But instead using Route config, you can use Attribute Routing. It is good way that Route config. — Elvin Mammadov
– Elvin Mammadov, Commented Aug 29, 2016 at 8:34
Use RoutePrefix attribute above your Controller. like [RoutePrefix("api/identity")] and then use [Route("{id}")] above your Action. Its make your Url like api/identity/id?id= — gaurav bhavsar
– gaurav bhavsar, Commented Aug 29, 2016 at 10:24

Huske · Accepted Answer · 2016-08-29 08:30:08Z

2

You could add Route attribute above the method that is affected. For example,

[Route("api/identity/{controller}/{id}", Order = 1)]
[HttpGet]
public IHttpActionResult DoSomethingHere(int id)
{
    // Do some magic here
}

Have a look at this article Attribute Routing in ASP.NET Web API 2.

answered Aug 29, 2016 at 8:30

Huske

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1 Comment

Robert Over a year ago

I was hoping to avoid attribute mess, but I guess it's a way to go

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