Design an Online Shopping System

Build the core of an online shop like Amazon: a catalogue with prices and stock, buyers who fill a cart, and a checkout that turns the cart into a numbered order, takes the stock and freezes the prices. Every rule must hold in any order of calls.

How the round runs

Hard · 5 stages · 5 questions · 60 min

~6 min

Requirements Gathering

lists

~3 min

Identifying Core Entities

cards

~14 min

Designing Classes & Relationships

diagram

~28 min

Code Implementation

code

~9 min

Deep Dives

code

Set up your round

Level

Interviewer

Duration

Junior · Standard · 60 min