Integrating with Node-RED
Node-RED is commonly used to rapidly prototype Internet of Things style applications, or to wire existing Internet services together.
You can use the Hyperledger Composer Node-RED contribution to:
- Submit transactions
- Read and update assets and participants
- Subscribe to events
- Delete assets and participants
The Hyperledger Composer Node-RED nodes are distributed as a standalone npm package, published here: - https://www.npmjs.com/package/node-red-contrib-composer
Hyperledger Composer Node-RED Nodes
A node red output node that allows you to create, update or delete assets or participants and submit transactions. For example, combining the hyperledger-composer-out node with an inject node allows you to create participants by submitting JSON definitions of those participants.
A node red mid flow node that allows you to create, retrieve, update, or delete assets and participants from a registry. For example, combining hyperledger-composer-mid with an inject node allows you to retrieve assets or participants by submitting the correct registry and identifying field as a JSON object.
A Node-RED input node that subscribes to events from a blockchain.