Money field Serializer rest

from djmoney.contrib.django_rest_framework import MoneyField
from moneyed import Money, Decimal


class MyMoneyField(MoneyField):
    def to_representation(self, obj):
        return {
            'amount': "%f" % (obj.amount),
            'currency': "%s" % (obj.currency),
        }

    def to_internal_value(self, data):
        return Money(Decimal(data), 'THB')