Asp.NET Web Api Routing

Question

I have the following code in my WebApiConfig.cs

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

ABCController.cs

 public class ABCController : ApiController { [AcceptVerbs("GET")] [ActionName("GetABCByXYZById")] public string GetABCByXYZById(int xYZId) { return "GetABCByXYZById"; } } 

When I try to call the API it says not able to find the action in the controller.

 /api/ABC/GetABCByXYZById/12 

Answer 1

It's because your routeTemplate uses the name {id} for the action parameter but your action actually takes in a parameter with name xYZId.

Try changing your action parameter to called id and it should work:
public string GetABCByXYZById(int id)