public EventOrchestrator(IMapper mapper, IArtistRepository repository, IFacebookExternalRepository facebookExternalRepository, ILastFmExternalRepository lastFmExternalRepository)
 {
     _mapper = mapper;
     _repository = repository;
     _facebookExternalRepository = facebookExternalRepository;
     _lastFmExternalRepository = lastFmExternalRepository;
 }
 public EventOrchestrator(IMapper mapper, IArtistRepository repository, IFacebookExternalRepository facebookExternalRepository, ILastFmExternalRepository lastFmExternalRepository)
 {
     _mapper     = mapper;
     _repository = repository;
     _facebookExternalRepository = facebookExternalRepository;
     _lastFmExternalRepository   = lastFmExternalRepository;
 }