Zero-copy RESP2 and RESP3 protocol parser and serializer.

resp-rs provides high-performance parsing and serialization for the Redis Serialization Protocol (RESP), supporting both RESP2 and RESP3.

Features

• Zero-copy parsing using bytes::Bytes for efficient memory management
• RESP2 and RESP3 support with separate frame types
• Streaming parser for incremental data (handles partial reads and pipelining)
• High performance: 4.8-8.0 GB/s throughput in benchmarks

Quick Start

RESP3 (recommended for new projects)

use bytes::Bytes;
use resp_rs::resp3;

let data = Bytes::from("+OK\r\n");
let (frame, remaining) = resp3::parse_frame(data).unwrap();
assert_eq!(frame, resp3::Frame::SimpleString(Bytes::from("OK")));

RESP2

use bytes::Bytes;
use resp_rs::resp2;

let data = Bytes::from("+OK\r\n");
let (frame, remaining) = resp2::parse_frame(data).unwrap();
assert_eq!(frame, resp2::Frame::SimpleString(Bytes::from("OK")));

Streaming parser (handles partial reads)

use bytes::Bytes;
use resp_rs::resp3::Parser;

let mut parser = Parser::new();

// Feed partial data
parser.feed(Bytes::from("+HEL"));
assert!(parser.next_frame().unwrap().is_none()); // Incomplete

// Feed the rest
parser.feed(Bytes::from("LO\r\n"));
let frame = parser.next_frame().unwrap().unwrap(); // Complete!