SignalRWindsorFacility adds ability to call client side services just with injected interface

1. It is testable. You are using these interfaces as any normal .NET interface
2. It supports intellisense

1. Define contract for client-side service

   public interface IChat
   {
       void AddMessage(string msg);
   }

2. Register IChat as client-side service associated with ChatHub

   public class DefaultInstaller : IWindsorInstaller
   {
       public void Install(IWindsorContainer container, IConfigurationStore store)
       {
           container.AddFacility<ClientServiceFacility>();
   
           container.Register(
               Component.For<IChat>().AsClientService().WithHub<ChatHub>());
       }
   }

3. Write your client-side logic

   (function ($) {
       $.extend($.connection.chatHub.client, {
           addMessage: function(msg) {
               alert(msg);
           }
       });
       $.connection.hub.start();
   })(jQuery);  

4. Inject IChat anywhere and call its methods as normal

   public class HomeController : Controller
   {
       readonly IChat chat;
   
       public HomeController(IChat chat)
       {
           this.chat = chat;
       }
   
       public ActionResult Index()
       {
           chat.AddMessage("Hello");
   
           return View();
       }
   }