public IActionResult DeleteFavoriteAnimal(int idUser, int idAnimal)
        {
            User           _user           = _userService.GetById(idUser);
            FavoriteAnimal _favoriteAnimal = _favoriteAnimalRepository.GetSingle(fa => fa.AnimalId == idAnimal && fa.UserId == idUser);

            if (_user == null || _favoriteAnimal == null)
            {
                return(NotFound());
            }
            else
            {
                _favoriteAnimalRepository.Delete(_favoriteAnimal);
                _favoriteAnimalRepository.Commit();

                return(new OkObjectResult(new { idAnimal = idAnimal }));
            }
        }
        public async Task <ActionResult <AdoptionRequest> > AddFavoritePet([FromBody] FavoriteAnimal favorite)
        {
            _context.Favorites.Add(favorite);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (FavoriteAnimalExists(favorite.AnimalId))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(Ok());
        }