public JsonResult AddNewsLetter([FromBody] NewsLetter newsletter) { if (!newsletter.Email.EmailValidation()) { return(Json("Email Is Not Valid")); } newsletter.Email = Sanitizer.GetSafeHtmlFragment(newsletter.Email); newsletter.Email = newsletter.Email.Trim(); if (newsletter.Email.Equals(null) || newsletter.Email.Equals("")) { return(Json("reject")); } bool result = service.AddNewsLetter(newsletter.Email); service.SaveChanges(); return(result ? Json("accept") : Json("reject")); }