/// <summary>
/// Provides dependency injection.
/// </summary>
/// <param name="countryStorage">Country storage.</param>
public CountriesController(ICountryStorage countryStorage)
{
this.countryStorage = countryStorage;
}
public CountryService(ICountryStorage countryStorage)
{
_countryStorage = countryStorage ?? throw new ArgumentNullException(nameof(countryStorage));
}
public CountryService(ICountryStorage countryStorage)
{
this.countryStorage = countryStorage;
}
