fromJson static method

FlightLocationContract? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static FlightLocationContract? 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 "FlightLocationContract[$key]" is missing from JSON.');
        assert(json[key] != null,
            'Required key "FlightLocationContract[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return FlightLocationContract(
      pressureAltitude: Distance.fromJson(json[r'pressureAltitude'])!,
      altitude: Distance.fromJson(json[r'altitude'])!,
      pressure: Pressure.fromJson(json[r'pressure'])!,
      groundSpeed: Speed.fromJson(json[r'groundSpeed'])!,
      trueTrack: Azimuth.fromJson(json[r'trueTrack'])!,
      reportedAtUtc: mapDateTime(json, r'reportedAtUtc', r'')!,
      lat: mapValueOfType<double>(json, r'lat')!,
      lon: mapValueOfType<double>(json, r'lon')!,
    );
  }
  return null;
}