Gets group counters.
One of roomId or roomName is required.
The group's id
The group's name
Counters for provided user id (need to have a view-room-administration right for calling user)
curl -H "X-Auth-Token: 8h2mKAwxB3AQrFSjLVKMooJyjdCFaA7W45sWlHP8IzO" \
-H "X-User-Id: ew28FnZqipDpvKw3R" \
-H "Content-type: application/json" \
joined - boolean flag that shows that user is joined the room or not
members - count of current room members
unreads - count of unread messages for specified user (calling user or provided userId)
unreadsFrom - start date-time of unread interval for specified user
msgs - count of messages in the room
latest - end date-time of unread interval for specified user (or date-time of last posted message)
userMentions - count of user mentions in messages