Enhance geolocation data retrieval by implementing multiple API sources with error handling
This commit is contained in:
ImBenji
@@ -127,16 +127,215 @@ class GeolocationData {
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}
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}
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// Get the geolocation data of the device using its IP address.
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Future<GeolocationData> getGeolocationData() async {
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// Get the IP address of the server. https://ipapi.co/json/
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var response = await http.get(Uri.parse('https://ipapi.co/json/'));
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// List of API configurations with their respective mappers
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final apiConfigs = [
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_ApiConfig(
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url: 'https://ipapi.co/json/',
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mapper: _mapIpapiCoResponse,
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name: 'ipapi.co',
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),
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_ApiConfig(
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url: 'http://ip-api.com/json/',
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mapper: _mapIpApiResponse,
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name: 'ip-api.com',
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),
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_ApiConfig(
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url: 'https://freeipapi.com/api/json/',
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mapper: _mapFreeIpApiResponse,
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name: 'freeipapi.com',
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),
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_ApiConfig(
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url: 'http://ipwhois.app/json/',
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mapper: _mapIpWhoisResponse,
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name: 'ipwhois.app',
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),
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];
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Exception? lastException;
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for (final config in apiConfigs) {
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try {
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print('Trying ${config.name}...');
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final response = await http.get(
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Uri.parse(config.url),
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headers: {'User-Agent': 'Dart/3.0'},
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).timeout(const Duration(seconds: 10));
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if (response.statusCode == 200) {
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var data = jsonDecode(response.body);
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return GeolocationData.fromJson(data);
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} else {
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throw Exception('Failed to get geolocation data');
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final data = jsonDecode(response.body);
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// Check if the response indicates success (for APIs that include status)
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if (data is Map<String, dynamic>) {
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final status = data['status']?.toString().toLowerCase();
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if (status != null && status != 'success' && status != 'ok') {
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throw Exception('API returned error status: $status');
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}
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}
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final geolocationData = config.mapper(data);
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print('Successfully got data from ${config.name}');
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return geolocationData;
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} else {
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throw Exception('HTTP ${response.statusCode}: ${response.reasonPhrase}');
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}
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} catch (e) {
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print('Failed to get data from ${config.name}: $e');
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lastException = Exception('${config.name}: $e');
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// Add delay before trying next API to avoid hitting rate limits
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if (config != apiConfigs.last) {
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await Future.delayed(const Duration(milliseconds: 500));
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}
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}
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}
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throw lastException ?? Exception('All geolocation APIs failed');
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}
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class _ApiConfig {
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final String url;
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final GeolocationData Function(Map<String, dynamic>) mapper;
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final String name;
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_ApiConfig({
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required this.url,
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required this.mapper,
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required this.name,
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});
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}
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// Mapper for ipapi.co (primary API - has most complete data)
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GeolocationData _mapIpapiCoResponse(Map<String, dynamic> json) {
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return GeolocationData(
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ip: json['ip'] ?? '',
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network: json['network'] ?? '',
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version: json['version'] ?? 'IPv4',
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city: json['city'] ?? '',
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region: json['region'] ?? '',
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regionCode: json['region_code'] ?? '',
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country: json['country'] ?? '',
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countryName: json['country_name'] ?? '',
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countryCode: json['country_code'] ?? '',
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countryCodeIso3: json['country_code_iso3'] ?? '',
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countryCapital: json['country_capital'] ?? '',
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countryTld: json['country_tld'] ?? '',
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continentCode: json['continent_code'] ?? '',
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inEu: json['in_eu'] ?? false,
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postal: json['postal'] ?? '',
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latitude: (json['latitude'] ?? 0.0).toDouble(),
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longitude: (json['longitude'] ?? 0.0).toDouble(),
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timezone: json['timezone'] ?? '',
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utcOffset: json['utc_offset'] ?? '',
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countryCallingCode: json['country_calling_code'] ?? '',
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currency: json['currency'] ?? '',
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currencyName: json['currency_name'] ?? '',
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languages: json['languages'] ?? '',
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countryArea: (json['country_area'] ?? 0.0).toDouble(),
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countryPopulation: json['country_population'] ?? 0,
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asn: json['asn'] ?? '',
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org: json['org'] ?? '',
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);
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}
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// Mapper for ip-api.com
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GeolocationData _mapIpApiResponse(Map<String, dynamic> json) {
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return GeolocationData(
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ip: json['query'] ?? '',
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network: '', // Not provided by ip-api.com
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version: json['query']?.toString().contains(':') == true ? 'IPv6' : 'IPv4',
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city: json['city'] ?? '',
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region: json['regionName'] ?? '',
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regionCode: json['region'] ?? '',
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country: json['country'] ?? '',
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countryName: json['country'] ?? '',
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countryCode: json['countryCode'] ?? '',
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countryCodeIso3: '', // Not provided by ip-api.com
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countryCapital: '', // Not provided by ip-api.com
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countryTld: '', // Not provided by ip-api.com
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continentCode: '', // Not provided by ip-api.com
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inEu: false, // Not provided by ip-api.com
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postal: json['zip'] ?? '',
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latitude: (json['lat'] ?? 0.0).toDouble(),
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longitude: (json['lon'] ?? 0.0).toDouble(),
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timezone: json['timezone'] ?? '',
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utcOffset: '', // Not provided by ip-api.com
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countryCallingCode: '', // Not provided by ip-api.com
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currency: '', // Not provided by ip-api.com
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currencyName: '', // Not provided by ip-api.com
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languages: '', // Not provided by ip-api.com
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countryArea: 0.0, // Not provided by ip-api.com
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countryPopulation: 0, // Not provided by ip-api.com
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asn: json['as'] ?? '',
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org: json['org'] ?? json['isp'] ?? '',
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);
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}
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// Mapper for freeipapi.com
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GeolocationData _mapFreeIpApiResponse(Map<String, dynamic> json) {
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return GeolocationData(
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ip: json['ipAddress'] ?? '',
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network: '', // Not provided by freeipapi.com
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version: json['ipVersion'] ?? 'IPv4',
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city: json['cityName'] ?? '',
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region: json['regionName'] ?? '',
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regionCode: '', // Not provided by freeipapi.com
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country: json['countryName'] ?? '',
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countryName: json['countryName'] ?? '',
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countryCode: json['countryCode'] ?? '',
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countryCodeIso3: '', // Not provided by freeipapi.com
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countryCapital: '', // Not provided by freeipapi.com
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countryTld: '', // Not provided by freeipapi.com
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continentCode: '', // Not provided by freeipapi.com
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inEu: false, // Not provided by freeipapi.com
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postal: json['zipCode'] ?? '',
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latitude: (json['latitude'] ?? 0.0).toDouble(),
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longitude: (json['longitude'] ?? 0.0).toDouble(),
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timezone: json['timeZone'] ?? '',
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utcOffset: '', // Not provided by freeipapi.com
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countryCallingCode: '', // Not provided by freeipapi.com
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currency: '', // Not provided by freeipapi.com
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currencyName: '', // Not provided by freeipapi.com
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languages: '', // Not provided by freeipapi.com
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countryArea: 0.0, // Not provided by freeipapi.com
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countryPopulation: 0, // Not provided by freeipapi.com
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asn: '', // Not provided by freeipapi.com
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org: json['isProxy'] == true ? 'Proxy Service' : '',
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);
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}
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// Mapper for ipwhois.app
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GeolocationData _mapIpWhoisResponse(Map<String, dynamic> json) {
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return GeolocationData(
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ip: json['ip'] ?? '',
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network: '', // Not provided by ipwhois.app
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version: json['type'] ?? 'IPv4',
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city: json['city'] ?? '',
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region: json['region'] ?? '',
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regionCode: json['region_code'] ?? '',
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country: json['country'] ?? '',
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countryName: json['country'] ?? '',
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countryCode: json['country_code'] ?? '',
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countryCodeIso3: '', // Not provided by ipwhois.app
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countryCapital: json['country_capital'] ?? '',
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countryTld: '', // Not provided by ipwhois.app
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continentCode: json['continent_code'] ?? '',
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inEu: json['country_eu'] ?? false,
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postal: '', // Not provided by ipwhois.app
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latitude: (json['latitude'] ?? 0.0).toDouble(),
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longitude: (json['longitude'] ?? 0.0).toDouble(),
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timezone: json['timezone_name'] ?? '',
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utcOffset: json['timezone_gmt'] ?? '',
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countryCallingCode: json['country_phone'] ?? '',
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currency: json['currency'] ?? '',
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currencyName: json['currency_name'] ?? '',
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languages: '', // Not provided by ipwhois.app
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countryArea: 0.0, // Not provided by ipwhois.app
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countryPopulation: 0, // Not provided by ipwhois.app
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asn: json['asn'] ?? '',
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org: json['org'] ?? json['isp'] ?? '',
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);
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}
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/// Check if Wireguard is installed on the system.
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