Architect
Oct 24, 2024 · Backend Development
Design and Implementation of Delivery Promise System in ZuanZuan App
This article explains how ZuanZuan designs and implements a high‑performance delivery‑promise (fulfilment timing) system, covering the definition of delivery promise, the order‑OMS‑WMS‑TMS workflow, estimated‑arrival calculations, high‑QPS handling with caching and Redis, and the logic behind next‑day and same‑day delivery filters.
High concurrencyOrder Managementdelivery promise
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