curl --request GET \
  --url http://{host}:{port}/group \
  --header 'Authorization: Bearer <token>'

{
  "proxies": [
    {
      "name": "默认",
      "type": "Selector",
      "now": "日本",
      "all": [
        "默认",
        "香港"
      ],
      "hidden": false,
      "icon": ""
    }
  ]
}