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September 15, 2024·18 min read

Building a Redis Clone in Go: Part 1

The best way to understand a system is to build it yourself. In this series, we implement a Redis-compatible server from scratch — starting with the RESP protocol and in-memory data structures.

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Building a Redis Clone in Go: Part 1

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What We're Building

A Redis-compatible server in Go. By the end of this series, it'll handle GET, SET, EXPIRE, LPUSH, and LPOP with full RESP protocol compliance.

The RESP Protocol

Redis Serialization Protocol (RESP) is surprisingly simple. Commands arrive as arrays of bulk strings. Responses are one of: simple strings, errors, integers, bulk strings, or arrays.

Part 1: Parsing RESP

We'll build a RESP parser that can decode incoming commands and encode responses. This is the foundation everything else sits on.