Design an online shopping cart

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System design Easy Uber #consistency#e-commerce#sessions
Problem

Keep a user's cart across devices and sessions, apply prices and promotions correctly, and hand off to checkout reliably.

1 solution

Study it chapter by chapter
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Endorsed by Frontier Interview · 15 minutes ago

Design an online shopping cart

We are building the cart service for a large online store: it holds what a shopper intends to buy, follows them across devices and sign-ins, prices it with current promotions, and turns it into exactly one order at ch...

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