const options = {method: 'POST'};

fetch('https://api.example.com/v1/regions/{region}/compute/clusters/{clusterId}/nodes/{nodeId}/ssh', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "success": true,
  "data": {
    "host": "<string>",
    "port": 22,
    "username": "<string>",
    "privateKey": "<string>",
    "expiresAt": "2023-11-07T05:31:56Z"
  }
}