fromJson static method

TrafficView? fromJson(dynamic value)

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

Implementation

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

    return TrafficView(
      blind: mapValueOfType<int>(json, r'blind'),
      callers: TrafficCaller.listFromJson(json[r'callers']),
      ceiling: mapValueOfType<int>(json, r'ceiling'),
      denied: mapValueOfType<int>(json, r'denied'),
      lanes: mapCastOfType<String, int>(json, r'lanes') ?? const {},
      mode: mapValueOfType<String>(json, r'mode'),
      org: mapValueOfType<String>(json, r'org'),
      refused: mapValueOfType<int>(json, r'refused'),
      requests: mapValueOfType<int>(json, r'requests'),
      screens: mapValueOfType<int>(json, r'screens'),
      strain: mapValueOfType<String>(json, r'strain'),
      tracked: mapValueOfType<int>(json, r'tracked'),
      unscored: mapValueOfType<int>(json, r'unscored'),
      windowSec: mapValueOfType<int>(json, r'window_sec'),
    );
  }
  return null;
}