How to call a WebApi controller method?

Question

I've just created asp.net mvc 4 app and added default webapi controller

public class UserApiController : ApiController
{
    // GET api/default1
    public IEnumerable<string> Get()
    {
        return new string[] { "value1", "value2" };
    }

    // GET api/default1/5
    public string Get(int id)
    {
        return "value";
    }

    // POST api/default1
    public void Post(string value)
    {
    }

    // PUT api/default1/5
    public void Put(int id, string value)
    {
    }

    // DELETE api/default1/5
    public void Delete(int id)
    {
    }
}

Then i was trying to call method get() by typing http://localhost:51416/api/get in the browser but getting error:

<Error>
<Message>
No HTTP resource was found that matches the request URI 'http://localhost:51416/api/get'.
</Message>
<MessageDetail>
No type was found that matches the controller named 'get'.
</MessageDetail>
</Error>

my route config:

public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                //defaults: new { controller = "UserApiController", id = RouteParameter.Optional }
                defaults: new { id = RouteParameter.Optional }
            );

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );
        }

Why it is not working by default? What can i do in order to fix that?

nemesv · Accepted Answer · 2012-08-22 12:14:23Z

8

You don't need to put get in the URL because GET is type of the HTTP verb.

And by default the browsers sends GET request if you type in an URL.

So try it with http://localhost:51416/api/

Because UserApiController is the default api controller if you uncomment the line defaults: new { controller = "UserApiController"... in your routing config

Note that you don't need the "controller" suffix when specifying your routes so the correct dafaults settings is :defaults: new { controller = "UserApi", id = RouteParameter.Optional } )

or you need to explicitly specifying the controller http://localhost:51416/api/userapi

You can start learning about Wep.API and a HTTP verb based routing conventions on the ASP.NET Web API site.

edited Aug 22, 2012 at 12:14

answered Aug 22, 2012 at 11:54

nemesv

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4 Comments

angularconsulting.au Over a year ago

was trying http://localhost:51416/api getting The resource cannot be found. but http://localhost:51416/api/userapi working :). How to fix http://localhost:51416/api route?

nemesv Over a year ago

To make http://localhost:51416/api work uncomment this line from the routing: defaults: new { controller = "UserApiController", id = RouteParameter.Optional } because there you specify the default controller for the route

angularconsulting.au Over a year ago

was tying with defaults: new { controller = "UserApiController", id = RouteParameter.Optional } but still getting The resource cannot be found. when calling localhost:51416/api/

nemesv Over a year ago

Sorry, you don't need the controller suffix try it with new { controller = "UserApi", id = RouteParameter.Optional }

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