Design a Calendar Store · System Design Interview

Design a Calendar StoreDesign the data model behind a shared work calendar, and how a day or a week of it is assembled for the person looking at it.What it has to do

Create an event with guests, and record who accepted

An event can repeat on a rule, and one occurrence of it can be moved or cancelled on its own

Show one person’s day or week, and find a time when several people are all free

Scale

Users: 300 million

Events created per day: 200 million

Calendar views per day: 4 billion

Out of scope

Sending the invitation emails

Video conferencing links

Booking rooms and equipment

The calendar interface

Practise this challengeAll system design challenges

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