Pattern series
Reservation Hold with TTL
6 System Design questions share this exact tag. Use the closely related series below for a fuller drill.
- 01Preview
Collaborative Shopping
Design a collaborative shopping experience where multiple people share a single cart in real time, add and remove items concurrently, and one designat...
Practice bank - 02Preview
Flight Booking System
Design a flight booking system that lets travelers search and book multi-leg itineraries across airlines, reserving fare-class seat inventory and issu...
Duffel - 03Preview
Hotel Reservation (Booking.com)
Design Booking.com — a hotel marketplace aggregating live availability and pricing from thousands of independent supplier hotels, where search results...
Booking.com - 04Preview
Hotel Reservation
Design a single-chain hotel reservation engine — travelers search date-range availability across properties, place a hold, and confirm a booking witho...
Practice bank - 05Preview
Restaurant Reservation
Design an OpenTable-style restaurant reservation system where diners book a time slot and party size at a restaurant, restaurants optimize table assig...
Yelp - 06Free guide
Ticketmaster
Design Ticketmaster — an event ticketing system that sells reserved seats under extreme flash-sale contention without ever double-selling a seat.
Ticketmaster