curl --request POST \
  --url https://uat-api.clinkbill.com/api/refund \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --header 'X-Timestamp: <x-timestamp>' \
  --data '
{
  "orderId": "order_xxxxx",
  "refundMerchantOrderId": "refund_ref_10001",
  "refundAmount": 19.99,
  "refundReasonType": 2,
  "remark": "Customer requested refund"
}
'

HttpResponse<String> response = Unirest.post("https://uat-api.clinkbill.com/api/refund")
  .header("X-Timestamp", "<x-timestamp>")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"orderId\": \"order_xxxxx\",\n  \"refundMerchantOrderId\": \"refund_ref_10001\",\n  \"refundAmount\": 19.99,\n  \"refundReasonType\": 2,\n  \"remark\": \"Customer requested refund\"\n}")
  .asString();

import requests

url = "https://uat-api.clinkbill.com/api/refund"

payload = {
    "orderId": "order_xxxxx",
    "refundMerchantOrderId": "refund_ref_10001",
    "refundAmount": 19.99,
    "refundReasonType": 2,
    "remark": "Customer requested refund"
}
headers = {
    "X-Timestamp": "<x-timestamp>",
    "X-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'X-Timestamp': '<x-timestamp>',
    'X-API-KEY': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    orderId: 'order_xxxxx',
    refundMerchantOrderId: 'refund_ref_10001',
    refundAmount: 19.99,
    refundReasonType: 2,
    remark: 'Customer requested refund'
  })
};

fetch('https://uat-api.clinkbill.com/api/refund', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "code": 200,
  "msg": "success",
  "data": {
    "createTime": 1754819711382,
    "refundId": "rfd_abc123xyz",
    "refundMerchantOrderId": "refund_ref_10001",
    "orderId": "order_def456uvw",
    "customerId": "cus_ghi789rst",
    "refundAmount": 19.99,
    "refundCurrency": "USD",
    "status": "success",
    "failureCode": "already_refunded",
    "failureMessage": "This payment has already been fully refunded. Check order status in your account's transaction history.",
    "refundReason": "Customer Initiated Refund",
    "metadata": {
      "arn": "8377252556170253",
      "merchantReferenceId": "sample_id"
    },
    "paymentInstrumentId": "<string>"
  }
}

"<string>"