curl --request GET \
  --url https://cloud.laravel.com/api/websocket-applications/{websocketApplication}/metrics \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "connection_count": {
      "labels": [
        "<string>"
      ],
      "average": [
        123
      ],
      "data": [
        {
          "x": "<string>",
          "y": [
            123
          ]
        }
      ]
    },
    "message_rate": {
      "labels": [
        "<string>"
      ],
      "average": [
        123
      ],
      "data": [
        {
          "x": "<string>",
          "y": [
            123
          ]
        }
      ]
    }
  },
  "meta": {
    "period": "<string>",
    "available_periods": [
      "<string>"
    ]
  }
}