fromJson static method

RewardsSchema? fromJson(dynamic value)

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

Implementation

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

    return RewardsSchema(
      items: SimpleItemSchema.listFromJson(json[r'items']),
      gold: mapValueOfType<int>(json, r'gold')!,
    );
  }
  return null;
}