Node-RED

Node-RED is a browser-based flow editor that runs on Node.js. People wire devices, services and data together as flows, and the runtime keeps those flows running as a server. Flows can expose HTTP endpoints through HTTP In nodes, which an application or website can call, and those routes can be secured with basic authentication. The flows themselves are stored in a flows file. The project documents installs with npm, Docker and an install script for the Raspberry Pi, the documentation covers the editor, and the library at flows.nodered.org holds shared nodes and flows.