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Design an Online Shopping Cart
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Design an online shopping cart system for a marketplace-style product, with the key constraint of one active cart per merchant per user. The core difficulty lies in modeling per-merchant carts, handli...
SWE
system-design
schema-design
concurrency
idempotency
caching
sharding
redis
kafka
data-modeling
streaming
Frequency
Single report
Last asked
2026-02-14
Stage
onsite-system-design
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