curl --request GET \
  --url https://uat-api.clinkbill.com/api/promotion-code/coupon/{couponId} \
  --header 'X-API-KEY: <api-key>' \
  --header 'X-Timestamp: <x-timestamp>'

HttpResponse<String> response = Unirest.get("https://uat-api.clinkbill.com/api/promotion-code/coupon/{couponId}")
  .header("X-Timestamp", "<x-timestamp>")
  .header("X-API-KEY", "<api-key>")
  .asString();

import requests

url = "https://uat-api.clinkbill.com/api/promotion-code/coupon/{couponId}"

headers = {
    "X-Timestamp": "<x-timestamp>",
    "X-API-KEY": "<api-key>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'X-Timestamp': '<x-timestamp>', 'X-API-KEY': '<api-key>'}
};

fetch('https://uat-api.clinkbill.com/api/promotion-code/coupon/{couponId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "code": 200,
  "msg": "success",
  "data": [
    {
      "couponId": "<string>",
      "promotionCodeId": "<string>",
      "code": "<string>",
      "status": "active",
      "firstOrderOnly": true,
      "redemptionCount": 123,
      "maxRedemptionLimit": 123,
      "validPeriodEnd": 1754819711382,
      "createTime": 1754819711382,
      "mirroring": true
    }
  ]
}

"<string>"