curl --location --request POST 'https://api.zuifuli.com/api/open/v2/refund/do?merchantCode=&sign=&signType=×tamp=&charset=&nonce=&tradeNo=&outTradeNo=¬ifyUrl=&refundAmt=&refundReason=&outRefundNo=&extraInfo='
{ "code": "0", "result": { "refundNo": "XXXXXXXX" } }