Tag
#e-commerce
2 articles tagged e-commerce.
LLDintermediate
Coupon System LLD: Rules Marketing Can Edit, Money That Can't Lie
A low-level design walkthrough of a coupon and promo system: eligibility rules as composable data, discounts with caps, the preview-redeem split, and usage limits that survive a rush.
10 min read
LLDbeginner
Inventory Management LLD: The Oversell Bug and the Reserve That Kills It
A low-level design walkthrough of an inventory management system: on-hand vs reserved vs available, two-phase reservations with commit and release, and the race that double-sells the last unit.
8 min read