Duplicate to Group

Use this node to broadcast a message to every member of a specific entity group — for example, sending a setTargetTemperature command to all devices in the Thermostats Floor 1 group, or propagating a reboot command to all sensors in a group when the message originator is itself an entity group.

The node operates in two modes:

Entity group is message originator is disabled. Configure:

• Owner — the tenant or customer that owns the target group.
• Type — the entity type of entities in the group (e.g., Device, Asset).
• Select entity group — the specific group to broadcast to (referenced by UUID).

Entity group is message originator is enabled. The incoming message originator must be an ENTITY_GROUP. If it is any other entity type, the message routes via Failure.

1. Determine the target entity group:
   • Mode 1: use the configured group.
   • Mode 2: check that the originator is an ENTITY_GROUP; if not, route via Failure.
2. Fetch all member entities of the target group.
3. If the group is empty or not found, route via Failure.
4. For each member entity, create a copy of the original message with the member as the new originator.
5. Enqueue all created messages via Success. Acknowledge the original message once all are enqueued.

Incoming data: { "targetTemperature": 100 }

{
  "entityGroupIsMessageOriginator": false,
  "entityGroupId": {
    "entityType": "ENTITY_GROUP",
    "id": "a1b2c3d4-e5f6-7890-1234-567890abcdef"
  }
}

State: group Thermostats Floor 1 contains Thermostat A and Thermostat B.

Result: two output messages — one originating from Thermostat A, one from Thermostat B, both with { "targetTemperature": 100 }.

Originator: entity group All sensors | Data: { "command": "reboot" }

{ "entityGroupIsMessageOriginator": true }

State: group contains Sensor A and Sensor B.

Result: two output messages — one originating from Sensor A, one from Sensor B.

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "TbDuplicateMsgToGroupNodeConfiguration",
  "type": "object",
  "required": ["entityGroupIsMessageOriginator"],
  "additionalProperties": false,
  "properties": {
    "entityGroupIsMessageOriginator": { "type": "boolean" },
    "entityGroupId": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "entityType": { "const": "ENTITY_GROUP" },
        "id": { "type": "string", "format": "uuid" }
      }
    }
  }
}