Send message to specific user in signalr

Question

I have a signalR Server(Console Application) and a client application(Asp.net MVC5)

How I can send message to specific user in OAuth Membership.

Actually I can't resolve sender user from hub request context with.

Context.User.Identity.Name

My Hub

public class UserHub : Hub
{

    #region Hub Methods
    public void LoggedIn(string userName, string uniqueId, string ip)
    {
        Clients.All.userLoggedIn(userName, uniqueId, ip);
    }
    public void LoggedOut(string userName, string uniqueId, string ip)
    {
        var t = ClaimsPrincipal.Current.Identity.Name;
        Clients.All.userLoggedOut(userName, uniqueId, ip);
    }
    public void SendMessage(string sendFromId, string userId, string sendFromName, string userName, string message)
    {
        Clients.User(userName).sendMessage(sendFromId, userId, sendFromName, userName, message);
    }
    #endregion
}

Start hub class(Program.cs)

class Program
{
    static void Main(string[] args)
    {
        string url = string.Format("http://localhost:{0}", ConfigurationManager.AppSettings["SignalRServerPort"]);
        using (WebApp.Start(url))
        {
            Console.WriteLine("Server running on {0}", url);
            Console.ReadLine();
        }
    }
}

Answer 1

All of these answers are unnecessarily complex. I simply override "OnConnected()", grab the unique Context.ConnectionId, and then immediately broadcast it back to the client javascript for the client to store and send with subsequent calls to the hub server.

public class MyHub : Hub
{
    public override Task OnConnected()
    {
        signalConnectionId(this.Context.ConnectionId);
        return base.OnConnected();
    }

    private void signalConnectionId(string signalConnectionId)
    {
        Clients.Client(signalConnectionId).signalConnectionId(signalConnectionId);
    }
}

In the javascript:

$(document).ready(function () {

    // Reference the auto-generated proxy for the SignalR hub. 
    var myHub = $.connection.myHub;

    // The callback function returning the connection id from the hub
    myHub.client.signalConnectionId = function (data) {
        signalConnectionId = data;
    }

    // Start the connection.
    $.connection.hub.start().done(function () {
        // load event definitions here for sending to the hub
    });

});