public async Task <List <ParkingMachine> > GetAllParkingMachinesAsync()
{
if (_parkingMachines == null)
{
_parkingMachines = await _cloudDeliveryService.GetAllItems <ParkingMachine>();
}
return(_parkingMachines);
}
public async Task <List <Zone> > GetAllZonesAsync()
{
if (_zones == null)
{
_zones = await _cloudDeliveryService.GetAllItems <Zone>();
}
return(_zones);
}