Node-RED ChirpStack Multicast & Enqueue Nodes

This package provides Node-RED nodes for interacting with the ChirpStack v4 gRPC API, allowing you to:

- Send multicast downlinks to a ChirpStack multicast group
- Send unicast downlinks to a specific device EUI
- Configure a shared ChirpStack gRPC server and API token
- Automatically handle hex / base64 / UTF-8 / Buffer payloads
- Optionally send confirmed downlinks

These nodes are intended for automation, testing, and operational workflows inside Node-RED.

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Nodes Included

$3

Stores:

- ChirpStack gRPC server address (e.g. chirpstack:8080)
- API Token (stored safely as Node-RED credentials)

This node must be created and referenced by the other nodes.

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$3

Sends a multicast downlink to a ChirpStack multicast group.

Inputs

- msg.payload — payload (hex, base64, UTF-8, or Buffer)
- msg.multicastGroupId or msg.payload.multicastGroupId
- msg.fPort or msg.payload.fPort

Outputs

- msg.payload.success
- msg.payload.fCnt
- msg.error on failure

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$3

Enqueues a unicast downlink for a specific device.

Inputs

- msg.payload — payload (hex, base64, UTF-8, or Buffer)
- msg.devEui or msg.payload.devEui
- msg.fPort or msg.payload.fPort
- msg.confirmed or msg.payload.confirmed

Outputs

- msg.payload.success
- msg.payload.id (queue ID)
- msg.payload.fCnt (frame counter)
- msg.error on failure

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Installation

Copy the .js and .html files into: