Architecture Digest

Dec 10, 2025 · Backend Development

How to Build a Mini Didi: Scalable Ride‑Hailing Architecture Explained

This article dissects the core architecture of a miniature ride‑hailing platform, covering domain‑driven design, layered microservice structure, Redis GEO for fast location queries, distributed locking, Netty‑based real‑time messaging, and hot‑cold data separation to handle massive traffic and ensure reliability.