Program.cs

public class Program
{
   public static void Main(string[] args)
   {
      CreateHostBuilder(args).Build().Run();
   }
 
   public static IHostBuilder CreateHostBuilder(string[] args) =>
      Host.CreateDefaultBuilder(args)
          .ConfigureWebHostDefaults(webBuilder =>
          {
             webBuilder.UseStartup<Startup>();
          });
}