curl --request POST \
  --url https://uat-interface.haipay.asia/common/voucher \
  --header 'Content-Type: application/json' \
  --data '
{
  "appId": 123,
  "orderNo": "<string>",
  "sign": "<string>"
}
'

{
  "status": "<string>",
  "error": "<string>",
  "msg": "<string>",
  "data": "<string>"
}