public async Task <PlaylistFromCreate> Handle(CreatePlaylistCommand request, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
var playlist = _mapper.Map <Playlist>(request);
await _catalogRepository.CreatePlaylist(playlist, request.TrackIds, cancellationToken);
return(_mapper.Map <PlaylistFromCreate>(playlist));
}
