ASP.NET Core RC2 SignalR Hub Context outside request thread

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You will have to pull the current github version from : Signalr Github
(Commit: b95ac7b at time of writing)

Once you have this, and have loaded the solution, or added all three of the projects to your existing solution, you will need to change project.json in all three projects.

Microsoft.AspNetCore.SignalR.Server – project.json

You will see references to version 1.1.0-* (RC3) of each assembly.
Change these to the current RC2, until you see the following

"Microsoft.AspNetCore.DataProtection": "1.0.0",
"Microsoft.AspNetCore.Hosting.Abstractions": "1.0.0",
"Microsoft.AspNetCore.Http.Extensions": "1.0.0",
"Microsoft.Extensions.DependencyModel": "1.0.0",

Now save the file, and the dependencies will update.

Do the same with The Messaging and Infrastructure project.json file’s, replacing any 1.1.0-* with 1.0.0

Once that is done, you can add a project reference to your main project of Microsoft.AspNetCore.SignalR.Server

Now that you have that loaded, Open your Startup.cs

Inside the ConfigureServices method, add:

 services.AddSignalR();

Inside the Configure Method add:

 app.UseSignalR();

Next, add a using statement and import the Infrastructure namespace as follows:

using Microsoft.AspNetCore.SignalR.Infrastructure;

And finally Create a static property in Startup.cs called ConnectionManager as follows:

public static IConnectionManager ConnectionManager;

Finally add a IServiceProvider property to the Configure method in Startup.cs (Need to import the System namespace). Then Load the ConfigurationManager from this.

 public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, IServiceProvider serviceProvider)
    {
        ConnectionManager = serviceProvider.GetService<IConnectionManager>();

Now, in your hubs / anywhere else, instead of using Globalhost, Simply use startup. For example:

IHubContext context = Startup.ConnectionManager.GetHubContext<SomeHub>();
context.Clients.All.someMethod();

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