Connecting to a SignalR server

Question

On the server I create a Hub

public class SGHub : Hub
{
    public static List<string> Users = new List<string>();

    public void Send(string name, string message)
    {
        Clients.All.broadcastMessage(name, message);
        Console.WriteLine(SGHub.Users.Count);
    }
}

On the client I connect to the Hub

void Start()
{
    hubConnection = new HubConnection(serverURL);
    hubConnection.Error += HubConnectionError;
    iHubProxy = hubConnection.CreateProxy("SGHub");
    Subscription subscription = iHubProxy.Subscribe("broadcastMessage");
    hubConnection.Start();
}

If the server is not running, and the client tries to connect to the Hub, the application hangs, how to avoid this?

Answer 1

You can try to start flow with an http request to serverURL

and only if server returns , you start signalr connection flow. ，您才启动信号器连接流程。

Answer 2

I would suggest to put you clientside connection code in a thread. That's how I did it. Every time you have a long running task (like waiting for a timeout in your case) and you do this in the UI thread the app will freeze.