iot/projects/IoTDameon/Startup.cs

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

namespace IoTDameon
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        private readonly string _origins = "AllowAllHeaders";
        public IConfiguration Configuration { get; }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddCors(options => options.AddPolicy(_origins,
                builder =>
                {
                    builder.SetIsOriginAllowed(o => true).AllowAnyMethod().AllowAnyHeader().AllowCredentials();
                })
            );
            services.AddSingleton<UpdateIoTNodeService>();
            services.AddHostedService<UpdateIoTNodeService>(o => o.GetRequiredService<UpdateIoTNodeService>());
            services.AddHttpClient();
            services.AddSignalR(o => o.EnableDetailedErrors = true).AddJsonProtocol();
            services.AddControllersWithViews();
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Error");
            }

            string basePath = this.Configuration.GetSection("AppSettings").GetValue<string>("BasePath");
            if (!string.IsNullOrEmpty(basePath))
            {
                app.UsePathBase(basePath);
            }

            app.UseCors(_origins);

            app.UseStaticFiles();

            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapHub<DefaultHub>("/hub", o =>
                {
                    o.ApplicationMaxBufferSize = long.MaxValue;
                    o.TransportMaxBufferSize = long.MaxValue;
                });
                endpoints.MapControllerRoute(
                    name: "areas",
                    pattern: "{area:exists}/{controller=Home}/{action=Index}/{id?}");

                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Home}/{action=Index}/{id?}");
            });
        }
    }
}