Web API Optional parameters in the middle

Question

I have the following route mapping or WEB API

[Route("Foo/Id/{id=1}/bar")]

I want to make Id optional as above however from client side no matter what I call it route doesn't match and I get 404 I try things like

Foo/Id//bar

But doesn't work. Is there way to use optional parameters with web api if the parameter is not at the end?

Answer 1

You could not use // in URL. The only way to make things you want is to map 2 routes for one endpoint. For examle

config.Routes.MapHttpRoute(
   name: "BarRoute",
   routeTemplate: "Foo/Id/{id}/bar",
   defaults: new { controller = "Foo" });

config.Routes.MapHttpRoute(
   name: "BarDefaultRoute",
   routeTemplate: "Foo/Id/bar",
   defaults: new { controller = "Foo" });