public DistanceController(
     IAirportQueryService airportQueryService,
     IAirportsCommandHandler airportsCommandHandler)
 {
     _airportQueryService    = airportQueryService;
     _airportsCommandHandler = airportsCommandHandler;
 }
 public AirportsController(IAirportQueryService airportQueryService, ICountryQueryService countryQueryService)
 {
     _airportQueryService = airportQueryService;
     _countryQueryService = countryQueryService;
 }
 public AirportsCommandHandler(IAirportQueryService airportQueryService)
 {
     _airportQueryService = airportQueryService;
 }