public BeerService() { _vendorABeerServices = new VendorABeerService(); }
public BeersController(IBeerServices beerService) { this._beerService = beerService ?? throw new ArgumentNullException("BeerService can NOT be null."); }
public HomeController(ILogger <HomeController> logger, IBeerServices beerService) { _logger = logger; _beerService = beerService ?? throw new ArgumentNullException("BeerService can not be null."); }