Program.cs

using AspCoreServer;
using AspCoreServer.Data;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using System;
using System.IO;

public class Program {
     public static void Main (string[] args) {
         var host = BuildWebHost (args);
         using (var scope = host.Services.CreateScope ()) {
             var services = scope.ServiceProvider;
             try {
                var context = services.GetRequiredService<SpaDbContext>();
                DbInitializer.Initialize(context);
            } catch (Exception ex) {
                 var logger = services.GetRequiredService<ILogger<Program>> ();
                 logger.LogError (ex, "An error occurred while seeding the database.");
             }
         }

         host.Run ();
     }
     public static IWebHost BuildWebHost (string[] args) =>
         WebHost.CreateDefaultBuilder (args)
         .UseKestrel ()
         .UseContentRoot (Directory.GetCurrentDirectory ())
         .UseIISIntegration ()
         .UseStartup<Startup> ()
         .Build ();
 }