System Design AI

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Classic designs 4

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48. Design a Ticket Booking System like Ticketmaster
Hold seats with one conditional write, pay by authorize and capture, and put ten million fans in a fair waiting room without selling a seat twice.
ClassicMedium
Search Concurrency Aurora
+5
AWS Booking OpenSearch Ticketing Waiting room
Worked design
Practice
87. Design a Hotel Booking System like Airbnb
Nights as counted inventory, holds that never double-book, search that knows availability, and payments that reconcile.
ClassicMedium
AWS Booking Geospatial
+3
Inventory Marketplace Payments
Worked design
Practice
90. Design a Book Seller Aggregator Platform
Buy the cheapest offer under a maximum price from 1,000 sellers: cached offers, coalesced quotes, a hold-order-capture saga, open requests.
ClassicMedium
Caching Databases AWS
+5
Booking DynamoDB Marketplace Payments Sagas
Worked design
Practice
96. Design a Food Delivery App like Uber Eats
Find restaurants that deliver to you, check out without double charges, time couriers to the kitchen and track them live.
ClassicMedium
AWS Booking Dispatch
+3
Geospatial Payments Real time
Worked design
Practice

Each design brings together the brief, practice, examples and discussion.