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h3

> 编程语言
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h3 一个异步 HTTP/3 实现。此 crate 提供了一个 [HTTP/3][规范] 实现,它针对提供的 QUIC 传输层进行通用化。

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h3 一个异步 HTTP/3 实现。此 crate 提供了一个 [HTTP/3][规范] 实现,它针对提供的 QUIC 传输层进行通用化。

h3

An async HTTP/3 implementation. This crate provides an HTTP/3 implementation that is generic over a provided QUIC transport. This allows the project to focus on just HTTP/3, while letting users pick their QUIC implementation based on their specific needs. It includes client and server APIs. Check the original design for more details.

Status

The h3 crate is still very experimental. While the client and servers do work, there may still be bugs. And the API could change as we continue to explore. That said, we eagerly welcome contributions, trying it out in test environments, and using at your own risk.

The eventual goal is to use h3 as an internal dependency of hyper.

Duvet

This crate uses the duvet crate to check compliance of the spec.
The generated report displays the current status of the requirements of the spec.

Get more information about this tool in the contributing document.

Features

  • HTTP/3 client and server implementation
  • Async only API
  • QUIC transport abstraction via traits in the quic module
  • Runtime independent (h3 does not spawn tasks and works with any runtime)
  • Supported QUIC implementations to date are Quinn (h3-quinn) , s2n-quic (s2n-quic-h3) and MsQuic (h3-msquic-async)

Overview

  • h3 HTTP/3 implementation
  • h3-quinn QUIC transport implementation based on Quinn

Getting Started

The examples directory can help get started in two ways:

  • There are ready-to-use client and server binaries to interact with other HTTP/3 peers. Check the README in that directory.
  • The source code of those examples can help teach how to use h3 as either a client or a server.

Server

You can find a full server example in examples/server.rs

Client

You can find a full client example in examples/client.rs

QUIC Generic

As mentioned, the goal of this library is to be generic over a QUIC implementation. To that effect, integrations with QUIC libraries exist:

  • h3-quinn: in this same repository.
  • s2n-quic-h3
  • h3-msquic-async

Interoperability

This crate as well as the quic implementations are tested (quinn, s2n-quic, MsQuic) for interoperability and performance in the quic-interop-runner. You can see the results at (https://interop.seemann.io/).

License

h3 is provided under the MIT license. See LICENSE.

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发布日期2026年8月1日
最后更新2026年9月17日
分类编程语言
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