Why it matters

Rideshare is popular design question. Understanding shapes geo + realtime systems.

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The architecture

Geo index: driver locations.

Matching: nearby driver → rider.

Realtime: WebSocket updates.

Rideshare designGeo indexdriver locationsMatching algorithmnearest, ETARealtime updatesWebSocketUber uses S2 cells for geo indexing
Rideshare architecture.
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How it works end to end

Geo indexing: S2, geohash, or quadtree.

Matching: not just nearest; factor ETA + rating.

Surge pricing: dynamic based on supply/demand.

Payments: split with provider.