Delivery rider app
Design an app for delivery riders. The screen mockups are given: order list, order detail and accept, pickup, delivery complete. Walk me through the whole flow, focusing on the order state machine and how you keep it in step with the server.
iOS system designShort answerExpert
Design the iOS client for a 1:1 chat like WhatsApp. Focus on message ordering, duplicates…
#offline-queue
iOS system designShort answerBasics
Design an app that shows the weather for the current location and favorite cities. Focus …
#location
iOS system designShort answerAdvanced
Assume the backend already exists and design a flight booking iOS app. The flow runs sear…
#state-machine
iOS system designShort answerAdvanced
Design a "toast" component for a design system. With several apps and teams using it, how…
#api-design