SignalR - Broadcasting over a Hub in another Project from outside of a Hub

Question

I have two projects in my solution:

Project 1: \"SignalRChat\" (MVC) - Works fine
Project 2: \"DatabaseWatcherService\" Windows Service - Work

Answer 1

This will only work, as far as I am aware, when you are calling the hub from within the web application.

In order to interact with the hub from outside of the web application, e.g. from a Windows Service, you will need to take a look at the SignalR Client Hubs documentation

1. Add the following NuGet package to your project: Microsoft.AspNet.SignalR.Client

2. Add the following statement to the top of your page: using Microsoft.AspNet.SignalR.Client;

3. You would need to create a connection to the hub, and then start the connection.

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var connection = new HubConnection("http://mysite/");
IHubProxy myHub = connection.CreateHubProxy("MyHub");

connection.Start().Wait(); // not sure if you need this if you are simply posting to the hub

myHub.Invoke("addNewMessageToPage", "Hello World");  

In your hub you would then need to have a method for AddNewMessageToPage which accepts the hello world string and from here call Clients.All.addNewMessageTopage(message)