public ObjectResult RegisterUser(string login, string password) { int responseCode = 0; string responseMessage = string.Empty; if (!string.IsNullOrEmpty(login) && !string.IsNullOrEmpty(password)) { string passwordHash = PasswordHashing.ComputePasswordHash(password); List <string> props = new List <string> { login, passwordHash }; UserModel model = ModelFactory.Instance.GetUserModel(props); UserDTO dto = ModelConverter.Instance.GetDTO(model) as UserDTO; responseCode = DataManager.Instance.Save(dto); } else { responseCode = 400; } switch (responseCode) { case (200): responseMessage = $"User {login} successfully added to base."; break; case (400): responseMessage = $"Bad request"; break; case (410): responseMessage = $"User was not added to base. Name {login} is allready taken."; break; default: if (responseCode == 0) { responseCode = 490; } responseMessage = "Unknown error. Try again later"; break; } return(StatusCode(responseCode, responseMessage)); }