curl --request GET \
  --url https://{instance}.domo.com/api/content/v2/groups/{group} \
  --header 'X-DOMO-Developer-Token: <api-key>'

{
  "id": 6789456782,
  "name": "Group Name",
  "type": "closed",
  "userIds": [
    123123123,
    342342344,
    555543423,
    432423423
  ],
  "creatorId": 4421231232,
  "memberCount": 4,
  "guid": "guid-goes-here",
  "description": "",
  "hidden": false,
  "default": false,
  "active": true
}