How to set route path correctly in Asp.Net Web Api

Question

http://xxxx/api/garmin/data throws the following error

No type was found that matches the controller named 'garmin'.

Below is the code in Global.asax

void Application_Start(object sender, EventArgs e) 
{
     RouteTable.Routes.MapHttpRoute(
        name: "ControllerAndAction",
        routeTemplate: "api/{controller}/{action}/{id}",
        defaults: new { id = System.Web.Http.RouteParameter.Optional }
     );

     GlobalConfiguration.Configuration.Formatters.JsonFormatter.MediaTypeMappings.Add(new QueryStringMapping("type", "json", new MediaTypeHeaderValue("application/json")));
     GlobalConfiguration.Configuration.Formatters.XmlFormatter.MediaTypeMappings.Add(new QueryStringMapping("type", "xml", new MediaTypeHeaderValue("application/xml")));
}

Controller Code

public class GraminController : ApiController
{
    // GET
    [HttpGet]
    [ActionName("data")]
    public string GetGarminData()
    {
        return "value";
    }
}

The above code worked on the development server, but throws the below error

No HTTP resource was found that matches the request URI 'http://xxxx/api/garmin/data'. No type was found that matches the controller named 'garmin'.

What am I doing wrong? How can I fix the error?

Yes, in Fiddler mentioned 'Content-Type: application/json; charset=utf-8' I am trying to make a simple GET request work, but that also fails. — Stuart Wells
– Stuart Wells, Commented Jul 25, 2016 at 9:10

Mostafiz · Accepted Answer · 2016-07-25 09:13:50Z

4

Your controller name Gramin but you are trying to access it using garmin. Map you route this way

public class GraminController : ApiController
{
    // GET
    [HttpGet]
    [Route("api/garmin/data")]
    public string GetGarminData()
    {
        return "value";
    }
}

or if you want to use your way then make the call

http://xxxx/api/gramin/data

edited Jul 25, 2016 at 9:13

answered Jul 25, 2016 at 9:08

Mostafiz

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4 Comments

Stuart Wells Over a year ago

Thank you Mostafiz ..... I somehow missed that. Such a silly error. It's working now. Cause of simple spelling error, spent hrs trying to troubleshoot. Much appreciated.

Stuart Wells Over a year ago

Can I ask a question ... in the above code [Route ...] I am not able to define a [Route] attritube. Is there a namespace I need to import ?

Mostafiz Over a year ago

System.Web.Http namespace, or directly System.Web.Http.Route()

Stuart Wells Over a year ago

Thanks Mostafiz, for some reason can't seem to import System.Web.Http.Route and the only import namespace I get is System.Web.Http.Routing.

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