public async Task CreateBookmarkAsync(CreateBookmark createBookmark) { var textExist = await _textRepository.ExistAsync(createBookmark.TextId); if (!textExist) { throw new NotFoundException("TextId not found"); } var userExist = await _userRepository.ExistAsync(createBookmark.UserId); if (!userExist) { throw new NotFoundException("UserId not found"); } await _textRepository.CreateBookmarkAsync(createBookmark); }