System Design · ByteDance · Medium
Build a real-time auction platform that has to stay correct and responsive when traffic is extremely high, especially for popular listings and during the closing seconds of an auction. Bids arrive through a REST endpoint. Every bid must be validated, ordering within a single auction must be preserved, and the current highest bid must be updated. The service has to reject stale bids, tolerate duplicate retries coming from clients, and finalize the winning bid (settlement)…
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