PeerJS is a real-time communication library and framework designed to establish direct peer-to-peer data and media connections between browsers. It provides a simplified wrapper for managing the lifecycles of WebRTC connectivity, enabling the exchange of audio, video, and data without a central relay.
The project includes a coordination server that handles signaling management by mapping unique user identities to network connection details. This server facilitates the discovery of remote peers and the exchange of metadata required to perform the initial connection handshake.
The framework supports several communication patterns, including real-time video calling, decentralized data messaging, and direct binary file transfers. It utilizes an event-driven system to manage connection states and employs heartbeat monitoring to track the health of active peer sessions.
