43 releases (stable)

1.10.1 Mar 3, 2025
1.9.5 Sep 30, 2024
1.9.4 Jun 17, 2024
1.8.0 Aug 30, 2022
0.0.5 Mar 21, 2015

#4 in Web programming

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13,412,589 downloads per month
Used in 25,445 crates (336 directly)

MIT/Apache

150KB
3K SLoC

httparse

crates.io Released API docs MIT licensed CI Discord chat

A push parser for the HTTP 1.x protocol. Avoids allocations. No copy. Fast.

Works with no_std, simply disable the std Cargo feature.

Changelog

Usage

let mut headers = [httparse::EMPTY_HEADER; 64];
let mut req = httparse::Request::new(&mut headers);

let buf = b"GET /index.html HTTP/1.1\r\nHost";
assert!(req.parse(buf)?.is_partial());

// a partial request, so we try again once we have more data

let buf = b"GET /index.html HTTP/1.1\r\nHost: example.domain\r\n\r\n";
assert!(req.parse(buf)?.is_complete());

License

Licensed under either of

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

No runtime deps