fromJson static method

WeatherStateContract? fromJson(dynamic value)

Returns a new WeatherStateContract instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static WeatherStateContract? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      requiredKeys.forEach((key) {
        assert(json.containsKey(key),
            'Required key "WeatherStateContract[$key]" is missing from JSON.');
        assert(json[key] != null,
            'Required key "WeatherStateContract[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return WeatherStateContract(
      location: GeoCoordinatesContract.fromJson(json[r'location'])!,
      validFrom: DateTimeContract.fromJson(json[r'validFrom'])!,
      validTo: DateTimeContract.fromJson(json[r'validTo'])!,
      airTemperature: WeatherStateContractAirTemperature.fromJson(
          json[r'airTemperature']),
      dewPoint: WeatherStateContractDewPoint.fromJson(json[r'dewPoint']),
      pressure: WeatherStateContractPressure.fromJson(json[r'pressure']),
      wind: WeatherStateContractWind.fromJson(json[r'wind']),
      visibility:
          WeatherStateContractVisibility.fromJson(json[r'visibility']),
      report: mapValueOfType<String>(json, r'report'),
      cloudBase: WeatherStateContractCloudBase.fromJson(json[r'cloudBase']),
      cloudCover: CloudCover.fromJson(json[r'cloudCover']),
      phenomenaGroups: PhenomenaGroup.listFromJson(json[r'phenomenaGroups']),
    );
  }
  return null;
}