Building Real-Time Order Tracking with WebSockets: Lessons from a Production Restaurant App
Real-time order tracking looks simple from the outside: a little map, a moving dot, a status label. "Order confirmed → Preparing → On the way." Then you build it, ship it, and watch it break at 8 PM on a Friday when 200 riders are online — and you learn that geospatial state is a stream, not a poin