This article describes the background, design goals, core technical solution, versioned implementation process, and performance improvements of a real‑time final‑price calculation module that integrates product price, coupons, and promotions to deliver up‑to‑date pricing for e‑commerce users.
This article explains the design and implementation of a modular, configurable pricing engine that handles real‑time and simulated price calculations for complex e‑commerce promotions, addressing rule fragmentation, extensibility, priority conflicts, and transaction‑level precision while ensuring high performance and reliability.
This article details Tuniu’s transformation from a single‑machine system to a large‑scale distributed architecture, covering the step‑by‑step serviceization process, the evolution of its price‑calculation service, the implementation of a service‑governance platform, data‑center migration challenges, performance‑optimization tools, and the technical evolution of its mobile app client.
This article explains how JD.com derives the displayed "JD price" from base prices and promotion rules using a real‑time pricing system built on Nginx, Redis clusters, and Tomcat, detailing the data flow, caching strategy, and disaster‑recovery mechanisms.
