public static void Main(string[] args) { var webHost = CreateHostBuilder(args).Build(); using (var scope = webHost.Services.CreateScope()) { var userManager = scope.ServiceProvider.GetRequiredService <UserManager <IdentityUser> >(); var signInManager = scope.ServiceProvider.GetRequiredService <SignInManager <IdentityUser> >(); var options = scope.ServiceProvider.GetRequiredService <IOptions <AppJwtSettings> >(); var authUser = new AuthUser(userManager, signInManager, options); authUser.CreateDefaultUserAdmin("*****@*****.**", "admin").Wait(); } webHost.Run(); }