fromJson static method

Reminder? fromJson(dynamic value)

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

Implementation

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

    return Reminder(
      method: ReminderMethod.fromJson(json[r'method'])!,
      minutes: mapValueOfType<int>(json, r'minutes')!,
    );
  }
  return null;
}