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",
    "attributes": {
      "id": 123,
      "name": "<string>",
      "suffix": "<string>",
      "description": "<string>",
      "default_value": "<string>",
      "calc_type": 0,
      "display_chart": true,
      "places": 123,
      "default_view": 0,
      "threshold": 123,
      "order": 123,
      "visible": 0,
      "created": {
        "human": "<string>",
        "string": "<string>"
      },
      "updated": {
        "human": "<string>",
        "string": "<string>"
      }
    },
    "relationships": {
      "points": {
        "data": [
          {
            "type": "metricPoints",
            "id": "<string>"
          }
        ]
      }
    }
  }
}