How to use SignalR hub instance outside of the hubpipleline

Question

I am using SignalR to broadcast messages to all my clients. I need to trigger the broadcasting outside of my hub class i.e. something like below:

var broadcast

Answer 1

A small update for those who might be wondering where the GlobalHost has gone. SignalR has been completely rewritten for .net core. So if you are using the SignalR.Core package (Difference between SignalR versions), you get an instance of SignalR hub context by injecting it into your service:

public class MyNeedyService
{
    private readonly IHubContext ctx;

    public MyNeedyService(IHubContext ctx)
    {
        this.ctx = ctx;
    }

    public async Task MyMethod()
    {
        await this.ctx.All.SendAsync("clientCall");
    }
}

And in Startup.cs:

services.AddSignalR()/*.AddAzureSignalR("...")*/;

Microsoft docu is here: Send SignalR messages from outside the hub.