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Master Rate Limiter LLD and Concurrency · 📌 1. Functional Requirements A Rate Limiter system should: Limit requests per client/user Support multiple...
LLD and Concurrency Design for vending machine · 1️⃣ Functional Requirements A vending machine should support: Add products Add inventory...
1️⃣ Functional Requirements A hotel system should support: Add hotel rooms Search rooms (by type, price, availability) Book room Cancel...
Modern platforms (Reddit, LinkedIn, YouTube) support multiple reaction types per entity. Core Requirements ✅ One user → one reaction per entity ✅...
The Silent Cost Behind Fast Reads Indexes don’t make systems faster —they shift cost from reads to writes, memory, and latency tails. 🧠 The...
🧠 Real-World Scenario You’re building a live podcast platform where: A host starts a live podcast session. Multiple guests are invited to...
