GoRedis

A lightweight Redis server implementation in Go that implements the Redis Serialization Protocol (RESP).

Features

Currently supported Redis commands:

• PING - Test server connection
• SET key value - Set a key-value pair
• GET key - Get the value of a key
• HSET hash field value - Set a field in a hash
• HGET hash field - Get a field from a hash
• HGETALL hash - Get all fields and values from a hash

Getting Started

Prerequisites

• Go 1.23.5 or later

Running the Server

go run . --port 6379  # Default port is 6379 if not specified

You can then connect to the server using any Redis client, including the official redis-cli.

Implementation Details

• Uses Go's standard library for TCP networking
• Implements basic RESP (Redis Serialization Protocol) parsing and encoding
• Thread-safe operations using sync.RWMutex
• Supports both simple strings and bulk strings in the protocol
• Handles array types for command processing

Potential Improvements

1. Data Persistence

   • Add support for saving data to disk
   • Implement Redis RDB-style persistence
   • Add AOF (Append Only File) logging

2. Additional Commands

   • Add support for Lists (LPUSH, RPUSH, LRANGE, etc.)
   • Add support for Sets (SADD, SMEMBERS, etc.)
   • Add support for Sorted Sets (ZADD, ZRANGE, etc.)
   • Implement expiration for keys (EXPIRE, TTL)

3. Enhanced Features

   • Add support for pub/sub messaging
   • Implement transactions (MULTI, EXEC, WATCH)
   • Add authentication (AUTH command)
   • Add database selection (SELECT command)

4. Performance Improvements

   • Implement connection pooling
   • Add support for pipelining
   • Optimize memory usage
   • Add benchmarking tools

5. Operational Improvements

   • Add proper logging and monitoring
   • Implement graceful shutdown
   • Add configuration file support
   • Add metrics and statistics commands (INFO)

6. Error Handling

   • Improve error messages and handling
   • Add better validation for commands
   • Implement proper timeout handling

Contributing

Feel free to submit issues and enhancement requests!

License

MIT License here