I got this working how I wanted by adding a route in RouteConfig.cs like so:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapHttpRoute(
name: "swagger_root",
routeTemplate: "",
defaults: null,
constraints: null,
handler: new RedirectHandler((message => message.RequestUri.ToString()), "swagger"));
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
See this code from swashbuckle to see what’s going on: https://github.com/domaindrivendev/Swashbuckle/blob/master/Swashbuckle.Core/Application/RedirectHandler.cs