{
    "return_code": "SUCCESS",
    "return_msg": "OK",
    "appid": "wx2421b1c4370ec43b",
    "mch_id": "10000100",
    "nonce_str": "NfsMFbUFpdbEhPXP",
    "sign": "B7274EB9F8925EB93100DD2085FA56C0",
    "result_code": "SUCCESS",
    "transaction_id": "1008450740201411110005820873",
    "out_trade_no": "1415757673",
    "out_refund_no": "1415701182",
    "refund_id": "2008450740201411110000174436",
    "total_fee": "1",
    "refund_fee": "1",
    "cash_fee": "1",
    "cash_refund_fee": "1",
    "promotion_detail": "{\"promotion_detail\":[{\"promotion_id\":\"109519\",\"scope\":\"SINGLE\",\"type\":\"DISCOUNT\",\"refund_amout\":5,\"goods_detail\":[{\"goods_id\":\"a_goods1\",\"refund_quantity\":7,\"price\":1,\"refund_amount\":4},{\"goods_id\":\"a_goods2\",\"refund_quantity\":1,\"price\":2,\"refund_amount\":1}]}]}"
}