curl --request GET \
  --url https://api-{dc}.moengage.com/v1/coupon-list/{coupon_list_id}/files/{coupon_file_id} \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'MOE-APPKEY: <moe-appkey>'

{
  "coupon_list_id": "<string>",
  "name": "<string>",
  "status": "<string>",
  "file_url": "<string>",
  "created_by": "<string>",
  "created_at": "<string>",
  "updated_at": "<string>",
  "_id": "<string>",
  "added_coupons": 123
}

{
  "error": {
    "code": "bad-request",
    "message": "Possible issues include duplicates, such as coupon list names, invalid data types, or missing mandatory attributes."
  }
}

{
  "error": {
    "code": "request-unauthenticated",
    "message": "Your request is unauthorized. Please verify your credentials and try again."
  }
}

{
  "error": {
    "code": "request-forbidden",
    "message": "Your account does not have access to the Coupon Management features. Contact the MoEngage team for further assistance."
  }
}

{
  "error": {
    "code": "unexpected-error",
    "message": "Something went wrong with your request. Please contact the MoEngage team for further assistance."
  }
}