fromJson static method

EdgeState? fromJson(dynamic value)

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

Implementation

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

    return EdgeState(
      configured: mapValueOfType<bool>(json, r'configured'),
      error: mapValueOfType<String>(json, r'error'),
      freshness: mapValueOfType<String>(json, r'freshness'),
      policy: mapCastOfType<String, String>(json, r'policy') ?? const {},
      provider: mapValueOfType<String>(json, r'provider'),
      reach: json[r'reach'] is Iterable
          ? (json[r'reach'] as Iterable).cast<String>().toList(growable: false)
          : const [],
      status: mapValueOfType<String>(json, r'status'),
    );
  }
  return null;
}