curl --request POST \
  --url https://cockroachlabs.cloud/api/v1/clusters/{cluster_id}/metricexport/prometheus \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN'

{
  "cluster_id": "<string>",
  "targets": {},
  "user_message": "<string>"
}

{
  "code": 123,
  "details": [
    {
      "@type": "<string>"
    }
  ],
  "message": "<string>"
}