Boost.Beast is a high-performance C++ networking library providing HTTP/1.1 and WebSocket protocol implementations built on Boost.Asio. It is a header-only (with optional separate compilation) library that offers a comprehensive set of vocabulary types, parsers, serializers, stream wrappers, and composed asynchronous operations for building networked applications. The library emphasizes symmetry, ease of use, flexibility, and performance, and includes extensive examples covering synchronous, asynchronous, coroutine (stackful and C++20), and awaitable patterns. It follows the Boost library design conventions and is part of the official Boost collection. The codebase demonstrates high craftsmanship with careful attention to allocators, error handling, executor propagation, and cancellation. While there is some duplication across examples and a few deprecated APIs, the core production headers are well-maintained and actively developed. The library also includes zlib compression for WebSocket permessage-deflate and experimental testing utilities.
Boost.MySQL is a high-quality, production-ready C++11 client library for MySQL and MariaDB, built on top of Boost.Asio. It provides both synchronous and asynchronous database access with a modern, type-safe interface. The library features a sans-I/O architecture that separates protocol logic from transport, enabling testability and flexibility. Key capabilities include connection pooling with automatic health checks, client-side SQL formatting to prevent injection, prepared statements, pipeline batching, and a static interface using Boost.Describe or Boost.Pfr for compile-time row mapping. The codebase demonstrates strong engineering practices: extensive unit and integration tests, fuzzing, thread-safety verification, and benchmarks against native MySQL clients. It is an official Boost library, actively maintained with a large community.
This repository implements a Minecraft reverse proxy server in C++ using the Asio asynchronous networking library. It intercepts Minecraft client connections, forwards them to a remote server, and provides features such as whitelist/blacklist access control, customizable MOTD (server list ping), per-user proxy routing, traffic monitoring, and a web-based control API. The architecture is event-driven with callbacks for login/logout events. The codebase includes a vendored copy of Asio (standalone) and a custom utility library (rbslib) providing buffer management, stream abstractions, varint encoding, command-line parsing, and file I/O. The proxy handles Minecraft protocol packets (handshake, status, login, ping) and supports both synchronous and asynchronous I/O via C++20 coroutines. While functional and reasonably well-structured, the project lacks automated tests, has some incomplete features, and uses Chinese comments which may hinder international maintenance. The vendored Asio library is large and may become outdated, but the core proxy logic is solid.