public ContentResult SignInUser(UserModel user) { if (ModelState.IsValid) { var model = SelectPassword.ValidateUser(user); if (model != null) { return(new ContentResult { Content = JsonSerializer.Serialize(model), ContentType = "application/json", StatusCode = (int)HttpStatusCode.OK }); } return(new ContentResult { StatusCode = (int)HttpStatusCode.NotFound }); } return(new ContentResult { StatusCode = (int)HttpStatusCode.InternalServerError }); }