Channel for per-group realtime events.

Topic: "group:<group_id>"

Only users who are members of the group may join this channel.

Events pushed to clients

• "member_joined" - A user joined the group. Payload: %{group_id, user_id}
• "member_left" - A user left the group. Payload: %{group_id, user_id}
• "member_kicked" - A user was kicked. Payload: %{group_id, user_id}
• "member_promoted" - A user was promoted to admin. Payload: %{group_id, user_id}
• "member_demoted" - A user was demoted to member. Payload: %{group_id, user_id}
• "updated" - Group settings were updated. Payload: group object
• "join_request_approved" - A join request was approved. Payload: %{group_id, user_id}
• "join_request_rejected" - A join request was rejected. Payload: %{group_id, user_id}
• "new_chat_message" - A new chat message. Payload: chat message object
• "chat_message_updated" - A chat message was updated. Payload: chat message object
• "chat_message_deleted" - A chat message was deleted. Payload: %{id: integer}
• "member_updated" - A group member was updated. Payload: user brief object
• "member_online" - A group member came online. Payload: %{user_id, is_online: true}
• "member_offline" - A group member went offline. Payload: %{user_id, is_online: false}