dbaplus Community

May 9, 2023 · Backend Development

How to Build a Scalable Discount System with Real‑Time Crowd Sync

This article explains a three‑step architecture for describing, storing, and calculating fan‑based discounts, introduces a crowd‑based abstraction to accelerate high‑traffic queries, and details a hybrid offline‑plus‑real‑time data‑sync strategy that ensures consistency and millisecond‑level response times.