curl --request POST \
  --url 'https://partner.onlytraffic.com/api/marketer?do=generate_link' \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "smartlink_id": 123,
  "click_id": "<string>"
}
'

{
  "status": "success",
  "data": {
    "click_id": "<string>",
    "url": "<string>",
    "expires_ts": 123,
    "expires": "<string>"
  }
}