• RainMaker group control topic (multicast to all nodes in a group or subgroup).

    • Broadcast (all devices in the group): rainmaker/nodes/groups/<groupId>/control
    • Single subgroup: rainmaker/nodes/groups/<groupId>/subgroups/<subgroupId>/control

    Parameters

    • groupId: string

      Primary group id (pgrp)

    • OptionalsubgroupId: string

      Optional subgroup id; when set, targets that subgroup only

    Returns string