System Design · DoorDash · Medium
1. 🍔 Food review system overview Design a review platform for delivery or restaurant-marketplace customers to share structured feedback about food they ordered, helping other shoppers decide what to purchase. Every review includes a star score and free-form text, and users can indicate whether a review was helpful. The platform combines reviews and votes into a per-item rating and an ordered collection of the most useful reviews. In this DoorDash-style version, reviewers…
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