ClientApiPoC/Shared/SignalR/TunnelHubExtensions.cs

using System.Diagnostics.CodeAnalysis;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Routing;
using Microsoft.Extensions.DependencyInjection;

namespace ClientApiPoC.Shared.SignalR {
    public static class TunnelHubExtensions {
        public static IServiceCollection AddTunnelHub(this IServiceCollection services) {
            services.AddSignalR(options => {
                // Nachrichtengröße auf max. 16MB bringen (Standard = 32KB).
                options.MaximumReceiveMessageSize = (16 * 1024 * 1024);
            });
            services.AddSingleton<ClientTracker>();
            return services;
        }

        public static HubEndpointConventionBuilder MapTunnelHub(this IEndpointRouteBuilder app, [StringSyntax("Route")] string pattern) {
            return app.MapHub<TunnelHub>(pattern);
        }
    }
}