Django json decimal encoder

Convert decimal to string for json  file

              
                import json

class DecimalEncoder(json.JSONEncoder):
    def default(self, obj):
        # 👇️ if passed in object is instance of Decimal
        # convert it to a string
        if isinstance(obj, Decimal):
            return str(obj)
        # 👇️ otherwise use the default behavior
        return json.JSONEncoder.default(self, obj)


def write_json_data(data, filename):
    with open("{}.json".format(filename), "w", encoding="utf-8") as f:
        # json.dump(data, f, ensure_ascii=False, indent=4, cls=DecimalEncoder)
        json.dump(data, f, ensure_ascii=False, cls=DecimalEncoder)