public async Task <IEnumerable <CityDto> > Get([FromQuery] CityRequestDto query)
        {
            var country = Countries.Germany;
            Func <Task <IEnumerable <CityDto> > > cityInfoCache = () => _cityInfoService.GetCities(country);
            var citiesOfCountry = await _cache.GetOrAddAsync <IEnumerable <CityDto> >($"citiesOf{country}", cityInfoCache, DateTimeOffset.Now.AddHours(24));

            return(citiesOfCountry.Where(x => x.Name.ToLower().StartsWith(query.Name.ToLower())).ToList());
        }
        public IActionResult GetCities()
        {
            var cities = _cityInfoService.GetCities();

            if (!cities.Any())
            {
                return(NoContent());
            }

            var citiesMapped = cities.Select(MapCity);

            return(Ok(citiesMapped));
        }