public static async Task Main(string[] args)
{
var host = CreateHostBuilder(args).Build();
using (var scope = host.Services.CreateScope())
{
var userManager = scope.ServiceProvider.GetRequiredService <UserManager <IdentityUser> >();
var roleManager = scope.ServiceProvider.GetRequiredService <RoleManager <IdentityRole> >();
await DbObject.InitialAsync(userManager, roleManager);
}
host.Run();
}