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A self-contained HTTP/1.1 + HTTP/2 + HTTP/3 + WebSocket + gRPC stack for Rust with zero third-party dependencies. The protocol core (courierust_http, courierust_hpack, courierust_h2, courierust_ws, courierust_deflate, courierust_quic, courierust_h3, courierust_fingerprint, courierust_crypto, courierust_bytes, courierust_io, courierust_error) compiles under no_std + alloc; the std layer adds a work-stealing thread pool, a multi-core client (h1 pool, h2/h3 drivers, WebSocket client), a server (event-driven scheduler + in-place WebSocket upgrade), a built-in TLS 1.2 + 1.3 stack, and gRPC. All public modules carry the courierust_ prefix so none of them collide with third-party crates of the same short name.
Every code sample below is real, runnable API usage.
- 快速上手（5 分钟跑通客户端 + 服务器）
- HTTP 客户端：配置、GET/POST、重定向、优先级、流式响应
- HTTP 服务器：handler、流式响应、h2、后台运行
- WebSocket：服务端升级、客户端、代理部署与安全策略
- gRPC：Service、unary、服务端流、自定义编解码、错误码
- 浏览器指纹：JA3 / JA4 / Chrome HTTP/2 指纹
- no_std：只用协议核心（嵌入式 / 内核态）
- 示例：25 个可直接运行的 demo
- 基准测试：自测、跨库对比与互操作验证
- Getting started (client + server in 5 minutes)
- HTTP client: config, GET/POST, redirects, priorities, streaming
- HTTP server: handlers, streaming, h2, background serving
- WebSockets: server upgrade, client, proxy deployment, security policy
- gRPC: Service, unary, server-streaming, custom codecs, status
- Fingerprints: JA3 / JA4 / Chrome HTTP/2
- no_std: protocol core only (embedded / kernel)
- Examples: 25 runnable demos
- Benchmarks: self, cross-library comparison, and interop validation
| Area | What you get |
|---|---|
| HTTP/1.1 | request/response parsing, keep-alive, chunked, 100-continue
|
| HTTP/2 (RFC 9113) | full frame codec, stream state machine, flow control |
| HTTP/3 (RFC 9114) | QUIC v1 + TLS 1.3 over UDP, QPACK, loss recovery, migration |
| WebSocket (RFC 6455 + 7692) | in-place upgrade on both server drivers, client over ws:///wss://, permessage-deflate, masking, close handshake, keepalive |
| Priorities (RFC 9218) |
PRIORITY_UPDATE + a WUCS scheduler (O(1), anti-starvation) |
| HPACK (RFC 7541) | table-driven Huffman, static/dynamic tables, RFC vectors verified |
| Fingerprints | JA3 / JA4 / Chrome HTTP/2 profile (self-contained MD5/SHA-256) |
| Multi-core | work-stealing server pool, bounded client connection pools |
| gRPC | framing + status + codec traits (protobuf itself is plug-in) |
| TLS | built-in TLS 1.2 + 1.3 for client/server HTTPS (RFC 5246/8446); external transports are also supported |
- Source:
https://github.com/blueokanna/Courierust - License: PolyForm Perimeter 1.0.1 — source-available, free for any purpose except a competing product; no warranty, no liability