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An extensible network service container for Node.js.

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Logo

NodeRed is an extensible network service container for Node.js.

NodeRed provides plumbing such as a TCP/IP and WebSocket server, a protocol parser, a request dispatcher, inter-node communication via Redis' PUBSUB features, and extensibility via JavaScript.

NodeRed is written for Node.js. Moreover, extensions are simply Node.js modules. These extensions may add new request handlers to the NodeRed client-server protocol; may hook into NodeRed client-handling events (e.g. on client connection); and may emit their own events that yet other extensions may listen for and react to.

An extension might add a feature such as user registration, authentication, validating the moves made in a chess game, perform web searches, query a database, anything really. Extensions may piggyback on the functionality of other installed extensions (provided they know how to do so).

Clients may perform basic "service discovery" to determine which extensions are installed on any NodeRed instance.

A NodeRed client connects to a single NodeRed instance in a cluster, issues one or more requests over some arbitrary period of time, receives responses and pushed notifications, and disconnects.

NodeRed is compatible with Node.js 0.1.91 or later and Redis 1.3.8 or later.

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