{
"reqInfo": {
"mchtCode": "string",
"termCode": "string"
},
"reqOrderInfo": {
"backUrl": "string",
"customInfo": "string",
"handlingFee": 0,
"orgTrace": "string",
"oriOrgTrace": "string",
"oriOutTrace": "string",
"oriTransDate": "string",
"promoRfAmount": 0,
"refundAmount": 0,
"refundSource": "string"
},
"payInfo": {
"bizScen": "string",
"bizType": "string",
"payType": "string",
"refundMode": "string",
"transDate": "string"
},
"qrCodeRefundExt": {
"currency": "str",
"operatorId": "string",
"queryOption": [
"string"
],
"refundReason": "string",
"storeCode": "string"
}
}