构建流水

curl --location '/openapi/finance/buildFlow' \
--header 'Content-Type: application/json' \
--data '{
    "appId": "string",
    "sign": "string",
    "version": "string",
    "timestamp": 0,
    "paramContent": {
        "transactionDirection": "string",
        "payerId": "string",
        "payerShopCode": "string",
        "flowType": 0,
        "totalAmount": 0,
        "payTime": "string",
        "outTradeNo": "string",
        "transType": "string",
        "createTime": "string",
        "remark": "string"
    }
}'