public async Task <IActionResult> AddSpotifySongToPlaylist([FromQuery] int playlistId, [FromQuery] string spotifySongId)
        {
            int userId = ClaimHelper.FindNameIdentifier(HttpContext.User.Claims);

            var response = await _songService.AddSpotifySongToPlaylist(userId, playlistId, spotifySongId);

            if (!response.Success)
            {
                return(BadRequest(response.Message));
            }

            SongDto songDto = _mapper.Map <Song, SongDto>(response.Resource);

            return(Ok(songDto));
        }