const options = {method: 'GET'};

fetch('https://api.paddle.com/ips', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "data": {
    "ipv4_cidrs": [
      "34.194.127.46/32",
      "54.234.237.108/32",
      "3.208.120.145/32"
    ]
  },
  "meta": {
    "request_id": "ceca4b2f-db0d-4b00-9228-35e0dec592b4"
  }
}