import 'dart:convert'; class ProductOption { int id; String name; double adjustAmount; String extra; bool disabled; ProductOption.fromJson(Map json) : id = json['id'], name = json['name'], adjustAmount = double.parse(json['adjust_amount'].toString()), extra = json['extra'], disabled = json['disabled']; Map toJson() => { 'id': id, 'name': name, 'adjust_amount': adjustAmount, 'extra': extra, 'disabled': disabled }; @override String toString() { return json.encode(this); } }