Blog Post

AllMethods.cs

public class Chat : Hub
{
    public void Send(string message)
    {
        // Call addMessage on everyone
        Clients.All.addMessage(message);

        // Call addMessage on everyone except the caller
        Clients.Others.addMessage(message);

        // Call addMessage on everyone except the specified connection ids
        Clients.AllExcept(Context.ConnectionId).addMessage(message);

        // Call addMessage on the caller
        Clients.Caller.addMessage(message);

        // Call addMessage on everyone in group "foo"
        Clients.Group("foo").addMessage(message);

        // Call addMessage on everyone else but the caller in group "foo"
        Clients.OthersInGroup("foo").addMessage(message);

        // Call addMessage on everyone in "foo" excluding the specified connection ids
        Clients.Group("foo", Context.ConnectionId).addMessage(message);

        // Call addMessage on to a specific connection
        Clients.Client(Context.ConnectionId).addMessage(message);
    }
}

Auth.cs

[Authorize]
public class Chat : Hub
{
}

[Authorize(Mode = AuthorizeMode.Outgoing)]
public class Chat2 : Hub
{
    [Authorize]
    public void Send(string message)
    {
    }

    public void Send2(string message)
    {

    }
}

Connections.cs

public class Chat : Hub
{
    public override Task OnConnected()
    {
        return base.OnConnected();
    }

    public override Task OnDisconnected()
    {
        return base.OnDisconnected();
    }

    public override Task OnReconnected()
    {
        return base.OnReconnected();
    }
}

KeepAlive.js

<script type="text/javascript">
    $(function () {
        var chat = $.connection.chat;

        chat.client.addMessage = function (message) {
            $('#messages').append('<li>' + message + '</li>');
        };
        
        $.connection.hub.connectionSlow(function() {
            alert('There seems to be some connectivity issues...');
        });
        
        $.connection.hub.start();
    });
</script>

NewClient.js

<script src="Scripts/jquery.signalR-1.0.0-alpha2.min.js" type="text/javascript"></script>
<script src="/signalr/hubs" type="text/javascript"></script>
<script type="text/javascript">
    $(function () {
        // Proxy created on the fly          
        var chat = $.connection.chat;

        // Declare a function on the chat hub so the server can invoke it          
        chat.client.addMessage = function (message) {
            $('#messages').append('<li>' + message + '</li>');
        };

        $("#broadcast").click(function () {
            // Call the chat method on the server
            chat.server.send($('#msg').val());
        });

        // Start the connection
        $.connection.hub.start();
    });
</script>
  
  <div>
    <input type="text" id="msg" />
    <input type="button" id="broadcast" value="broadcast" />

    <ul id="messages">
    </ul>
  </div>

PipelineModule.cs

namespace MySignalRApplication
{
    public class Global : System.Web.HttpApplication
    {
        protected void Application_Start(object sender, EventArgs e)
        {
            GlobalHost.HubPipeline.AddModule(new LoggingPipelineModule());
        }
    }

    public class LoggingPipelineModule : HubPipelineModule
    {
        protected override bool OnBeforeIncoming(IHubIncomingInvokerContext context)
        {
            Debug.WriteLine("=> Invoking " + context.MethodDescriptor.Name + " on hub " + context.MethodDescriptor.Hub.Name);
            return base.OnBeforeIncoming(context);
        }

        protected override bool OnBeforeOutgoing(IHubOutgoingInvokerContext context)
        {
            Debug.WriteLine("<= Invoking " + context.Invocation.Method + " on client hub " + context.Invocation.Hub);
            return base.OnBeforeOutgoing(context);
        }
    }
}

RejoiningGroups.cs

namespace MySignalRApplication
{
    public class Global : System.Web.HttpApplication
    {
        protected void Application_Start(object sender, EventArgs e)
        {
            GlobalHost.HubPipeline.EnableAutoRejoiningGroups();
        }
    }    
}

Startup.cs

[assembly: PreApplicationStartMethod(typeof(MySignalRApplication.RegisterHubs), "Start")]

namespace MySignalRApplication
{
    public static class RegisterHubs
    {
        public static void Start()
        {
            // Register the default hubs route: ~/signalr/hubs
            RouteTable.Routes.MapHubs();            
        }
    }
}

Changed calls to .send to .addMessage since that is what the client method is in the Javascript example.