XRS Reactive Server

xrs is a JavaScript library designed for building reactive servers and clients, currently at version 1.2.2. It facilitates full-duplex communication by treating both client requests and server responses as streams, promises, or plain values. The server component integrates the Express framework for routing and μWS (uws) for high-performance WebSocket handling, enabling efficient management of both HTTP and WebSocket connections. A key differentiator is its emphasis on stream-based interactions, allowing complex real-time data flows and supporting features like binary uploads with progress event tracking. The client-side library is designed to be lightweight, bundling at approximately 3 KB. While specific release cadence information is not provided, the current version suggests it is either actively maintained or stable. It's suitable for applications requiring low-latency, real-time communication with built-in stream processing capabilities.