Tag

#bookmymovie

2 articles

Articles tagged #bookmymovie

  1. One Seat, Two Buyers: Race Conditions, IDOR and Keys in a Cinema Booking System

    How BookMyMovie makes sure one cinema seat is never sold twice, a guessed booking number shows nothing, and a leaked or missing key can't quietly break tickets: row locks, lock order, a NULL-tolerant unique key, status compare-and-set, idempotency, IDOR scoping, HMAC tickets, captcha step-up, and the bugs that still got through.

    11 minThe Engineering Logs

  2. BookMyMovie: Building a Cinema Ticketing Platform

    The story of BookMyMovie, a cinema booking site I built alone: why buying a ticket in Pakistan is still a hassle, the one rule the whole system is built around, how two people can never end up with the same seat, the back office, the design, and the bugs that slipped through.

    20 minThe Engineering Logs