vivo Internet Technology
Aug 25, 2021 · Backend Development
Design and Implementation of a Time‑Travel Module for E‑commerce Promotion Validation
The team built a whitelist‑based time‑travel module that overrides the system clock for selected operators, letting them preview future promotional prices in Vivo’s e‑commerce flow without creating real orders, by propagating an openId context through Dubbo filters and replacing System.currentTimeMillis() with a custom TimeTravelUtil.
DubboJavabackend
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