#http-3 #qpack #quic #networking #rfc-9204

sys ls-qpack-sys

QPACK (RFC 9204) Rust binding to C library ls-qpack

6 releases

0.1.4 Dec 20, 2023
0.1.3 Sep 16, 2023
0.1.2 Jun 24, 2023
0.1.1 May 26, 2023
0.1.0-alpha Oct 16, 2022

#30 in #http-3

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133 downloads per month
Used in 3 crates (via ls-qpack)

MIT/Apache

665KB
9K SLoC

C 9K SLoC // 0.0% comments Perl 340 SLoC // 0.1% comments Rust 53 SLoC // 0.0% comments Shell 53 SLoC // 0.1% comments

ls-qpack

crates.io docs.rs

QPACK: Field Compression for HTTP/3 (RFC 9204)

Rust implementation based on ls-qpack

Introduction

QPACK is a compressor for headers data used by HTTP/3. It allows correctness in the presence of out-of-order delivery, with flexibility for implementations to balance between resilience against head-of-line blocking and optimal compression ratio.

Example

use ls_qpack::decoder::Decoder;
use ls_qpack::encoder::Encoder;
use ls_qpack::StreamId;

const HEADERS: [(&str, &str); 2] = [(":status", "404"), ("foo", "bar")];

fn main() {
    let (encoded_headers, _) = Encoder::new()
        .encode_all(StreamId::new(0), HEADERS)
        .unwrap()
        .into();

    let decoded_headers = Decoder::new(0, 0)
        .decode(StreamId::new(0), encoded_headers)
        .unwrap()
        .take()
        .unwrap();

    println!("Decoded header: {:?}", decoded_headers);
}

Dependencies

~0–2.1MB
~42K SLoC