Paid. Then sold out.
The last room went to another site first.
What you'll learn
- Why every booking site can sell the same last hotel room
- Why you authorize a payment at Pay and capture it after the supplier confirms
- What to do when the supplier does not answer at all
Share this passage
Drawing…
Understand it one step at a time
The short runs these in order in about 57 seconds. Here they are written out — pick any step to jump the short straight to it.
One room, two sites
The last sea-view room for the long weekend, shown on your app and on another site.
Free app · no app store
These are built for a phone
Every short is drawn at full portrait height, the shape a phone already is. Installed, it opens full-bleed with no address bar across the top — and the whole library reads offline.
Read deeper on Architecture
Twenty seconds gets the shape of an idea across. These go into how it behaves in production.
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Paid, Then Sold Out: How Hotel Booking Confirmation Really Works
How hotel booking confirmation works after payment: authorize, book with the supplier, then capture, and what happens if another site sells the room first.
More shorts
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Architecture
One hotel. Three JSONs.
10 steps · 57s
-
Architecture
Netflix does not stream from Netflix
8 steps · 22s
-
Azure
Money debited. Order failed.
10 steps · 56s
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