fromJson static method

SubscriptionContract? fromJson(dynamic value)

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

Implementation

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

    return SubscriptionContract(
      id: mapValueOfType<String>(json, r'id')!,
      isActive: mapValueOfType<bool>(json, r'isActive')!,
      createdOnUtc: mapDateTime(json, r'createdOnUtc', r'')!,
      subject: SubscriptionSubjectContract.fromJson(json[r'subject'])!,
      subscriber: SubscriberContract.fromJson(json[r'subscriber'])!,
      activateBeforeUtc: mapDateTime(json, r'activateBeforeUtc', r''),
      expiresOnUtc: mapDateTime(json, r'expiresOnUtc', r''),
    );
  }
  return null;
}