public ActionResult AddEnemy(AddEnemyRequest addEnemyRequest) { var validation = _validator.ValidateAddEnemy(addEnemyRequest); if (!validation.IsValid) { return(BadRequest(new { error = validation.ErrorMessage })); } var user = _memberRepo.GetMember(addEnemyRequest.MemberId); user.Enemies.Add(addEnemyRequest.EnemyId); return(Accepted($"api/members/{user.Id}/enemies", user.Enemies)); }