Build Your Own Redis Server in C++ | Part 2 — Command Handler, Use Cases & Background Persistence

In Part 2 of our Redis Server series, we implement the RedisCommandHandler class in C++. We walk through common Redis commands and their real-world use cases, discuss how the database will be dumped in the background every 5 minutes, and build the foundation for parsing RESP commands and handling input from clients. What you’ll learn in this video: RESP command parsing with fallback Common Redis command patterns (PING, ECHO, SET, HGET, etc.) Designing a clean processCommand() function Use cases for each command group Background persistence using std::thread Clean, extendable architecture GitHub link: https://github.com/Cukowski/Redis-Server 00:00 - Intro & Recap of Part 1 01:10 - Persistance Setup for Future Implementation 05:10 - Classes to Create 06:00 - Usage Diagram and Commands 07:45 - Setting Up RedisCommandHandler Class 11:40 - RESP Protocol Parsing Explained 15:50 - Implementing parseRespCommand() in C++ 31:20 - Writing the processCommand() Function 37:00 - Summary & What’s Coming #redisserver #cpp #tutorial #coding #buildredisserver #socketprogramming #tcpserver #redisprotocol