const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: '<string>',
    projectId: '<string>',
    kubernetesVersion: '<string>',
    nodePools: [{name: '<string>', machineType: '<string>', replicas: 123}]
  })
};

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

{
  "success": true,
  "data": {
    "id": "<string>",
    "name": "<string>",
    "projectId": "<string>",
    "regionId": "<string>",
    "kubernetesVersion": "<string>",
    "status": "provisioning",
    "createdAt": "2023-11-07T05:31:56Z",
    "health": {
      "status": "healthy",
      "lastChecked": "2023-11-07T05:31:56Z"
    },
    "endpoint": "<string>",
    "nodeCount": 123,
    "metadata": {},
    "updatedAt": "2023-11-07T05:31:56Z"
  }
}