SocketCluster Server

SocketCluster Server (version 20.0.0) is the core server-side module for the SocketCluster real-time framework, designed to facilitate highly scalable, event-driven applications using WebSockets. It operates by attaching to an existing Node.js HTTP/HTTPS server and provides robust mechanisms for managing inbound connections, handling Remote Procedure Calls (RPCs), and processing real-time event streams. A key differentiator and architectural shift in recent major versions is its adoption of modern JavaScript async iterators (`for-await-of` loops) for stream processing, moving away from traditional `EventEmitter` patterns. This paradigm promotes more readable, succinct, and less error-prone code by reducing callback hell and simplifying resource management, as listeners do not need explicit unbinding. While it maintains a compatibility mode for older clients (protocolVersion 1), the current stable version encourages the use of its async iterable API. Releases tend to align with major Node.js LTS updates or significant architectural improvements.