E-commerce System Design: Inventory, Checkout, Orders & Scale

A shopper adds the last available item to a cart. Another shopper does the same. Both click Place Order. One payment times out; the other succeeds. Meanwhile, the product price changes, the fulfillment queue is delayed, and the checkout service restarts. A credible e-commerce system design must explain what happens next—not merely draw boxes... Weiterlesen: E-commerce System Design: Inventory, Checkout, Orders & Scale