code: ********************timestamp: ********************signature: ********************{
"passengerIds": [
10001
]
}curl --location '/train/openapi/v4/orders/TO202607150001/refund-estimate' \
--header 'code: <api-key>' \
--header 'timestamp: <api-key>' \
--header 'signature: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"passengerIds": [
10001
]
}'{
"code": 0,
"message": "Success",
"data": {
"currency": "CNY",
"cutoffAt": "2026-07-19 09:00:00",
"priceBasis": "passenger",
"items": [
{
"passengerId": 10001,
"ticketRefundPrice": 500,
"refundAmount": 447,
"deductFee": 53,
"serviceFee": 0
}
]
}
}