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aioquic

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What is aioquic?

aioquic is a library for the QUIC network protocol in Python. It features a minimal TLS 1.3 implementation, a QUIC stack and an HTTP/3 stack.

QUIC was standardised in RFC 9000 and HTTP/3 in RFC 9114. aioquic is regularly tested for interoperability against other QUIC implementations.

To learn more about aioquic please read the documentation.

Why should I use aioquic?

aioquic has been designed to be embedded into Python client and server libraries wishing to support QUIC and / or HTTP/3. The goal is to provide a common codebase for Python libraries in the hope of avoiding duplicated effort.

Both the QUIC and the HTTP/3 APIs follow the "bring your own I/O" pattern, leaving actual I/O operations to the API user. This approach has a number of advantages including making the code testable and allowing integration with different concurrency models.

Features

  • QUIC stack conforming with RFC 9000
  • HTTP/3 stack conforming with RFC 9114
  • minimal TLS 1.3 implementation conforming with RFC 8446
  • IPv4 and IPv6 support
  • connection migration and NAT rebinding
  • logging TLS traffic secrets
  • logging QUIC events in QLOG format
  • HTTP/3 server push support

Requirements

aioquic requires Python 3.8 or better, and the OpenSSL development headers.

Linux

On Debian/Ubuntu run:

sudo apt install libssl-dev python3-dev

On Alpine Linux run:

sudo apk add openssl-dev python3-dev bsd-compat-headers libffi-dev

OS X

On OS X run:

brew install openssl

You will need to set some environment variables to link against OpenSSL:

export CFLAGS=-I/usr/local/opt/openssl/include
export LDFLAGS=-L/usr/local/opt/openssl/lib

Windows

On Windows the easiest way to install OpenSSL is to use Chocolatey.

choco install openssl

You will need to set some environment variables to link against OpenSSL:

$Env:INCLUDE = "C:\Progra~1\OpenSSL\include"
$Env:LIB = "C:\Progra~1\OpenSSL\lib"

Running the examples

aioquic comes with a number of examples illustrating various QUIC usecases.

You can browse these examples here: https://github.com/aiortc/aioquic/tree/main/examples

License

aioquic is released under the BSD license.