LuTiao Programming

Aug 19, 2026 · Backend Development

Recreating WeChat‑Style Message Recall with Spring Boot: Why Deleting Isn’t the Hard Part

The article walks through building a true WeChat‑like message recall feature in Spring Boot, explaining why simply deleting a row is insufficient and detailing the required status change, concurrency‑safe conditional update, multi‑device session handling, and cross‑instance event propagation.