curl --request POST \
  --url http://localhost/api/metrics \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "suffix": "<string>",
  "calc_type": 0,
  "description": "<string>",
  "default_value": 123,
  "display_chart": true,
  "threshold": 30,
  "places": 123
}
'

{
  "data": {
    "id": "<string>",
    "type": "metrics",
    "relationships": {}
  }
}