Iceshrimp.NET/Iceshrimp.Backend/Hubs/ExampleHub.cs

using Microsoft.AspNetCore.SignalR;
namespace Iceshrimp.Backend.Hubs;

public class ExampleHub : Hub
{
	public async Task SendMessage(string user, string message)
	{
		await Clients.All.SendAsync("ReceiveMessage", "SignalR", "ping!");
	}
}