fromJson static method

PositionNMEAGSA? fromJson(dynamic value)

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

Implementation

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

    return PositionNMEAGSA(
      sentence: mapValueOfType<String>(json, r'sentence'),
      type: mapValueOfType<String>(json, r'type'),
      selectionMode: mapValueOfType<String>(json, r'selectionMode'),
      mode:
          json[r'mode'] == null ? null : num.parse(json[r'mode'].toString()),
      satellites: json[r'satellites'] is List
          ? (json[r'satellites'] as List).cast<num>()
          : const [],
      PDOP:
          json[r'PDOP'] == null ? null : num.parse(json[r'PDOP'].toString()),
      HDOP:
          json[r'HDOP'] == null ? null : num.parse(json[r'HDOP'].toString()),
      VDOP:
          json[r'VDOP'] == null ? null : num.parse(json[r'VDOP'].toString()),
      talkerId: mapValueOfType<String>(json, r'talker_id'),
    );
  }
  return null;
}