calling SignalR hub from WebAPI controller

Question

I'm using MVC 5, Signal R 2.0.1, and WebAPI 2, and have a simple hub set up named ExportHub

public class ExportHub : Hub
{
    public void Send(string name, string message)
    {
        // Call the addNewMessageToPage method to update clients.
        Clients.All.addNewMessageToPage(name, message);
    }
}

I'm attempting to call this from WebAPI so the UI can be updated.

var hubContext = GlobalHost.ConnectionManager.GetHubContext<ExportHub>();

But within hubContext I don't see any reference to Send or addNewMessageToPage. How do I gain access to the methods within the hub?

score 2 · Answer 1 · answered Apr 17 '14 at 19:00

You will not be able to call any methods of specified hub. GetHubContext only returns a IHubContext of specified T Hub. Instead of calling Hub methods you should directly invoke method from your web api method to client like

Clients.All.addNewMessageToPage(name, message);

score 0 · Answer 2 · edited Mar 01 '16 at 00:44

0

Try to make your Send method static, and then call hubContext.Send(string, string)

edited Mar 01 '16 at 00:44

johnnyRose

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answered Feb 17 '14 at 12:49

tzm

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3

If you make it static, then surely you won't have access to `Clients`? – harriyott Apr 03 '14 at 21:20

calling SignalR hub from WebAPI controller

2 Answers2