kevy-resp

A zero-dependency RESP (REdis Serialization Protocol) codec in pure Rust.

Part of kevy, a single-machine, Redis-compatible key–value server — but usable standalone for anything that speaks RESP.

• Incremental parsing — parse_command returns Ok(None) when the buffer holds only a partial frame, so it drops straight into a streaming read loop.
• Both request forms — RESP2 multi-bulk (*N\r\n$len\r\n…) and inline (PING\r\n).
• Reply encoders that append to a caller-owned Vec<u8> (no per-call allocation): simple strings, errors, integers, bulk/null-bulk, array headers.
• Zero dependencies, #![forbid(unsafe_code)]-friendly (no unsafe).

use kevy_resp::{encode_simple_string, parse_command};

let (cmd, consumed) = parse_command(b"*1\r\n$4\r\nPING\r\n").unwrap().unwrap();
assert_eq!(cmd, vec![b"PING".to_vec()]);
assert_eq!(consumed, 14);

let mut out = Vec::new();
encode_simple_string(&mut out, "PONG");
assert_eq!(out, b"+PONG\r\n");

License

Licensed under either of MIT or Apache-2.0 at your option.