Using SignalR 2 in ASP.NET 5 application

SignalR 3 and ASP.NET 5 were working together nicely up until the beta7 version. Now Microsoft states that SignalR 3 is ‘on hold’, and one should not expect the two to work together in the near future:

https://github.com/aspnet/SignalR-Server/issues/119

https://github.com/aspnet/SignalR-Server/issues/121

So the question: is there a way to make at least SignalR 2 work in an ASP.NET 5 app?

Answers:

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Method 1

Found the general solution for using owin-compatible middleware in this article:
https://lbadri.wordpress.com/2014/11/01/asp-net-vnext-middleware-versus-owinkatana-middleware/

1. Reference the Microsoft.AspNet.Owin package
2. Insert the following code into Startup.Configure:

app.UseOwin(addToPipeline =>
{
    addToPipeline(next =>
    {
        var appBuilder = new AppBuilder();
        appBuilder.Properties["builder.DefaultApp"] = next;

        appBuilder.MapSignalR();

        return appBuilder.Build<AppFunc>();
    });
});

Method 2

SignalR 2 also runs on .NET Core 2, when you poke around in the internals:

// SignalR checks if it's running in a Mono environment and then
// disables features like performance counters
// .NET Core isn't Mono, but doesn't have the performance counters DLL
// Let's make .NET Core a Mono
var signalRAssembly = typeof(Microsoft.AspNet.SignalR.PersistentConnection).Assembly;
// This type is internal
var monoUtility = signalRAssembly.GetType("Microsoft.AspNet.SignalR.Infrastructure.MonoUtility");
var field = monoUtility.GetField(
    "_isRunningMono",
    BindingFlags.NonPublic | BindingFlags.Static
);
field.SetValue(null, new System.Lazy<bool>(() => true));

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0