websocket.io

websocket.io v0.2.1 is a minimalistic WebSocket server library originally extracted from Socket.IO. It supports multiple WebSocket protocol versions (draft-75 through RFC 6455) and provides a standalone server or attach mode for Node.js HTTP servers. The package is deprecated and unmaintained; it was last published in 2012 and targets Node 0.6. It is superseded by modern WebSocket libraries like ws or uWebSockets.js.