Signalr IConnectionIdGenerator not found in SignalR 1.0rc2 release

Question

I used to implement my own connection id generator with the following code:

public class MyConnectionFactory : IConnectionIdGenerator
{
    public string GenerateConnectionId(IRequest request)
    {
        return MyUserManager.Instance.CurrentUserID.ToString();
    }
}

This was working fine with SignalR 0.5.3 release but after updating to SignalR 1.0rc2 release the namespace or class name is not found. Also, I am not able to find any note on this breaking change here https://github.com/SignalR/SignalR/blob/master/ReleaseNotes.md Can you help me fixing this issue?

Answer 1

This is gone indeed and there is no direct replacement as you're supposed to do the user/connection mapping manually now.

I solved it using a HubPipelineModule and setting up a group for all connections of that user.

public class AuthenticationHubPipelineModule : HubPipelineModule
{
    protected override bool OnBeforeIncoming(IHubIncomingInvokerContext context)
    {
        var id = MyUserManager.Instance.CurrentUserID.ToString();

        context.Hub.Groups.Add(context.Hub.Context.ConnectionId, id);

        return base.OnBeforeIncoming(context);
    }
}

When you then want to reach out to the user, you can just send it to that group like this:

var context = GlobalHost.ConnectionManager.GetHubContext<YourHub>();
context.Clients.Group(userId).yourCallbackMethod();

Hope this helps, Yves