public static async Task Main(string[] args) { var host = CreateHostBuilder(args).Build(); using (var scope = host.Services.CreateScope()) { var services = scope.ServiceProvider; try { var context = services.GetRequiredService <ApplicationDbContext>(); if (context.Database.IsSqlServer()) { context.Database.Migrate(); } var userManager = services.GetRequiredService <UserManager <ApplicationUser> >(); await ApplicationDbContextSeed.SeedDefaultUserAsync(userManager); await ApplicationDbContextSeed.SeedSampleCityDataAsync(context); } catch (Exception ex) { var logger = scope.ServiceProvider.GetRequiredService <ILogger <Program> >(); logger.LogError(ex, "An error occurred while migrating or seeding the database."); throw; } } await host.RunAsync(); }