toJson method

Map<String, dynamic> toJson()

Serialize object to JSON string

@return

Implementation

Map<String, dynamic> toJson() {
  final val = <String, dynamic>{};

  void writeNotNull(String key, dynamic value) {
    if (value != null) {
      val[key] = value;
    }
  }

  writeNotNull('code', code);
  writeNotNull('title', title);
  writeNotNull('price', price);
  writeNotNull('qty', qty);
  writeNotNull('tax', tax);
  writeNotNull('total', total);

  return val;
}