curl --request POST \
  --url https://www.waffo.com/api/v1/merchantconfig/inquiry \
  --header 'Content-Type: application/json' \
  --data '
{
  "merchantId": 1000000201
}
'

{
  "code": "<string>",
  "msg": "<string>",
  "data": {
    "merchantId": "<string>",
    "totalDailyLimit": "<string>",
    "remainingDailyLimit": "<string>",
    "transactionLimit": "<string>"
  }
}