private static void Initializer(IHost host) { using (var scope = host.Services.CreateScope()) { var roleManager = scope.ServiceProvider.GetRequiredService <RoleManager <Role> >(); UsersAndRoles.SeedRoles(roleManager).Wait(); var userManager = scope.ServiceProvider.GetRequiredService <UserManager <User> >(); UsersAndRoles.SeedUsers(userManager).Wait(); Seed.Data(scope); } }