chat_Startup.cs

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            ///
            /// sesuai bawaan template project
            ///
            
            services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
            .AddCookie(CookieAuthenticationDefaults.AuthenticationScheme, d =>
            {
                d.LoginPath = "/account/login";
                d.AccessDeniedPath = "/account/denied";
                d.Cookie.Name = "chant_signalr";
            });

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
            
            services.AddSignalR();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            ///
            /// default bawaan template project
            ///

            app.UseAuthentication();
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
            });

            app.UseSignalR(d=>{
                d.MapHub<ChatHub>("/hubs/chat");
            });
        }