SignalR .NET Client not receiving messages

Question

I have a .NET console application that I am practicing signalR with.

var hubConnection = new HubConnection("http://URL/signalr/");

var hub = hubConnection.CreateHubProxy("Hub");

hub.StateChanged += change =>
{
     Console.WriteLine(change.NewState);
};
hub.Received += s =>
{
     Console.WriteLine(s);
};

hub.On<string, string>("processMessage", (group, message) =>
{
    Console.WriteLine(message);
});

await hubConnection.Start();

await hub.Invoke<string>("Subscribe", "New group");

I see the state changing from Connecting to Connected but I am not getting a "Received" event on the client when the server sends a message. The server is sending a group message as soon as the client subscribes and I can see the message being sent with the correct "New group" groupname, however I never receive the message on the client. I also do not receive the processMessage event when the server uses that method.

Server Code

private void CallBack(string group, string message) 
{
    Clients.Group(group).processMessage(group, message);
}

The other method on the server is Subscribe which just sets my inner server to use the CallBack method when it has data available to send to the client.

Edit This works in Javascript it just doesn't seem to work in the .NET client.

Answer 1

Without full serverside code it's hard to say but I think this part is wrong

hubConnection.CreateHubProxy("Hub");

as argument you need the name of your hubclass on serverside. For example

hubConnection.CreateHubProxy("MyHub");

To get more informations on clientside why it fails you can temporary add the following to your HubConnection

hubConnection.TraceLevel = TraceLevels.All;
hubConnection.TraceWriter = Console.Out;

After adding this you will get further debuging informations in your output section in VS