public async Task <ActionResult <IEnumerable <ResponseEmployee> > > GetEmployee(int id)
        {
            if (id == 0)
            {
                throw new ArgumentException($"{id} is not a valid id");
            }

            var results = await northwindRepository.GetAsyncEmployee(id);

            string val = JsonConvert.SerializeObject(results);

            //  await sendmail.SendMail(val, EnumEmailType.plaintext);

            return(Ok(results));
        }