Asp.Net_Single_Page_App/Single_Page_Anwendung/Program.cs

using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Single_Page_Anwendung.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Aps_Single_Page_Anwendung
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = CreateHostBuilder(args).Build();
            using(var scope = host.Services.CreateScope())
            {
                var service = scope.ServiceProvider;
                try
                {
                    DatenEinlesen.Initialize(service);
                }
                catch (Exception ex)
                {
                    var logger = service.GetRequiredService<ILogger<Program>>();
                    logger.LogError(ex, "Fehler mit der Datenbank!");
                    throw;
                }
            }

            host.Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
    }
}