Boost.Beast is a production-grade C++ library providing asynchronous HTTP/1.1 and WebSocket client/server implementations. Built on the Boost.Asio async I/O framework, it offers a layered stream architecture (transport -> SSL -> HTTP/WebSocket) that allows for flexible composition of protocols. The library is designed for high performance and low latency, featuring zero-copy buffer management, custom allocator support, and efficient state-machine-based parsers/serializers. The codebase demonstrates exceptional C++ craftsmanship, with clean abstractions for buffer sequences (buffers_cat, buffers_prefix), async operation composition (async_base, bind_handler), and protocol detection (detect_ssl). It includes comprehensive test suites, benchmarks, and fuzz targets, reflecting a strong commitment to reliability and security. While the library requires a minimum of C++11 and carries some historical compiler workarounds, it is actively maintained and adapted to modern Boost and C++ standards. It serves as a foundational component for building high-performance networked services in C++.
EasySwoole is a high-performance PHP framework built on the Swoole extension, designed for building distributed, persistent-memory API services. It provides a complete server abstraction (HTTP, WebSocket, TCP) with coroutine support, along with built-in components for configuration management, logging, error handling, process management, task workers, crontab scheduling, and inter-process communication via Unix sockets. The framework includes a powerful CLI for server lifecycle management (start/stop/reload/status), process inspection, crontab control, and task worker rolling reloads. Its architecture is modular, using singletons, dependency injection, and event-driven hooks, and it ships with a comprehensive test suite. The codebase is written in a non-standard PHP dialect (likely transpiled), which may limit direct reuse in standard PHP projects, but the patterns and design are well-considered.
PeerJS Server is a Node.js application that facilitates WebRTC peer-to-peer connections by handling signaling between clients. It does not proxy media data but exchanges metadata (offers, answers, ICE candidates) via WebSocket connections. The server provides an HTTP API for obtaining client IDs and discovering peers (when enabled), manages client state and message queues for offline clients, and includes services to monitor connection health and expire stale messages. Built with Express.js and the 'ws' library, it features a modular architecture separating API routing, message handling, core logic (realm/model management), and background services (connection checking, message expiration). The CLI entry point allows running as a standalone server, while the programmatic API enables integration into existing Node.js applications.