How to Build a High‑Performance Sign‑In System with Spring Boot & Redis BitMap
This article walks through the design and production‑grade implementation of a high‑throughput sign‑in service using Spring Boot, Redis BitMap, Lua scripts, and asynchronous reward processing, covering why traditional relational tables fall short, key generation, offset calculation, continuous‑sign‑in logic, architecture layering, scaling, monitoring, and testing strategies.
