http://localhost:2597/api/DeliveryManager/Status?country=US&delivery_provider=Postmates&job_id=del_LRJbs4qNKRCqzk

[HttpGet]
[Route("api/DeliveryManager/Status")]
public async Task<DeliveryManagerJobStatusResponse> GetDeliveryManagerStatus([FromUri]DeliveryManagerStatus status)
{
}

 public class DeliveryManagerStatus
 {
      public string Country { get; set; }
      public string DeliveryProvider { get; set; }
      public string JobId { get; set; }
 }

[HttpGet]
[Route("api/DeliveryManager/Status")]
public async Task<DeliveryManagerJobStatusResponse> GetDeliveryManagerStatus(string country = "", string provider = "", string jobId = "")
{
}

public static void Register(HttpConfiguration config)
{
    // Web API configuration and services

    // Web API routes
    config.MapHttpAttributeRoutes();

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

     // I tried this too but not getting the desired result.
     config.Routes.MapHttpRoute(
            name: "StatusApi",
            routeTemplate: "api/{controller}/{type}/{country}/{deliveryProvider}/{jobId}"
        );
}