go-redis-server 🚀

A Redis-compatible server built from scratch in Go

This project is a Redis server implementation in Go, built step-by-step following the Codecrafters Redis Challenge. It supports basic Redis commands, RDB persistence, and replication.

Features Implemented ✅

Core Redis Commands

✔ Bind to a port and accept connections
✔ Handle multiple concurrent clients
✔ Implement the following Redis commands:

• PING
• ECHO
• SET & GET

RDB Persistence

✔ Parse and load RDB files
✔ Support for:

• Reading a key and its value
• Handling multiple keys and values
• Expiry handling for keys

Replication

✔ Configure the server to act as a replica
✔ Implemented the INFO command for replication status
✔ Initial replication setup:

• Send handshake (3/3)
• Receive handshake (1/2) (in progress)

Upcoming Roadmap 🛠️

🔹 Finish Replication:

• Complete Receive handshake (2/2)
• Full master-replica synchronization

🔹 Support Redis Streams

🔹 Implement Redis Transactions (MULTI, EXEC, DISCARD)

Running the Server

Prerequisites

• Go 1.20+ installed

Start the Redis server

go run app/main.go

Interact Using redis-cli

redis-cli -p 6379

127.0.0.1:6379> PING
PONG

127.0.0.1:6379> SET key1 "hello"
OK

127.0.0.1:6379> GET key1
"hello"

Contributing 🤝

Contributions are welcome! Feel free to open issues and PRs.