Architecture Overview

File	Description
red / red.js	The main entry point for Node-RED. Provides the programmatic API into the runtime.
red / ui.js	Creates the basic express app that serves the UI and related REST endpoints.
red / server.js	The heart of the runtime. Adds runtime API endpoints to the express app created by ui.js. Provides start/stop functions for the runtime.
red / events.js	A singleton event-emitter for broadcasting events through-out the runtime.
red / comms.js	Provides a WebSocket endpoint for real-time communication with the editor UI.
red / library.js	Provides Flow Library and generic node-type library (e.g. Functions, Templates) functionality.
red / log.js	Centralised log handling for the runtime and nodes.
red / storage / index.js	Pluggable storage system for the runtime.
red / storage / localfilesystem.js	Default storage plugin for the local file system.
red / nodes / index.js	Entry point into the nodes API.
red / nodes / Node.js	The class prototype all runtime nodes extend.
red / nodes / registry.js	The registry of all node types. Responsible for discovering the installed nodes and loading them into the runtime.
red / nodes / flows.js	Takes the requested flow configuration and instantiates/starts/stops it.
red / nodes / credentials.js	Provides an api to the credential system for load/add/get/delete functionality.