AspNetCore.Docs/aspnetcore/release-notes/sample/StartupSignalRhubs.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

namespace WebApplication131
{
    public class StartupSignalRhubs
    {
        #region snippet
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSignalR(options =>
            {
                options.MaximumParallelInvocationsPerClient = 5;
            });
        }
        #endregion

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapGet("/", async context =>
                {
                    await context.Response.WriteAsync("Hello World!");
                });
            });
        }
    }
}