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Page: Architecture Overview
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API Reference Architecture Overview Architecture: Cluster Multi Process Contribution Process Dashboard layout tool Definitions Deprecated: Message properties overriding set node properties Design Notes Design: dynamic palette Design: API Token management Design: CLI tool to produce a node skeleton Design: Concurrent editing Design: Custom Node admin route handling Design: Dynamic MQTT node Design: Dynamic node's icon Design: Editable port labels Design: Editor Events Design: Editor Themes Design: Editor UI Customisation Design: Encryption of credentials Design: Enhancements to Split Join nodes Design: Flow Linter Design: Flow Manipulation API Design: Flow file format v2 Design: Function Library node Design: Library Sidebar Design: Logging Framework Design: Node Generator Design: Node Messaging API Design: Node blacklist whitelist function Design: Node module lifecycle Design: Node settings Design: Palette Management UI Design: Persistable Context Design: Platform Specific Nodes Design: Projects Design: Runnable Project Design: Runtime Editor Split Design: Runtime Events Design: Runtime extension points Design: Subflow Enhancements Design: Subflow Instance properties Design: Subflow Node modules Design: Usage telemetry Design: Using environment variables Design: Version Control Design: adminAuth User Management Design: external file for function and templates nodes Design: i18n de Design: i18n Design: msg.parts description of usage Design: multiuser Design: subflows vNext Design: subflows Design:Shared Global Context Editor Mouse Actions Editor Runtime API Flow Format Flow testing Home Input node feature definitions Live runtime information Node Design Guidelines Node documentation guide Node msg Conventions Output node feature definitions Pluggable Message Routing Query node feature definitions ReadMe Raspberry Pi Advanced Runtime Editor Comms protocol Technical Interchange 2018 04 13 Technical Interchange Meetings Testing UI testing Watch node feature definitions Web Nodes outline adminAuth Credential Authentication dynamic palette join in auto mode npm installable nodes
6 Architecture Overview
Thor Berggren edited this page 2018-10-20 10:00:02 -07:00

This overview is 3+ years old. A lot has changed, moved and is being completely reworked in 0.20.

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.