Master API design for interviews. Learn REST, GraphQL, gRPC and design real-world APIs for Twitter, Stripe, Dropbox, WhatsApp, and Airbnb.
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Master the foundational principles of API design — REST, GraphQL, gRPC, versioning, and authentication patterns that interviewers expect you to know.
Learn the essential patterns every production API needs — pagination, rate limiting, idempotency, filtering, error handling, and discoverability.
Design a complete API for a Twitter-like social platform — tweet CRUD, timelines, social graph, and real-world trade-offs.
Design a payment processing API inspired by Stripe — payment intents, webhooks, idempotency, and financial safety patterns.
Design a Dropbox-like file storage API — chunked uploads, resumable transfers, sharing permissions, and sync conflict resolution.
Design a WhatsApp-like messaging API — message delivery, group chats, read receipts, presence indicators, and real-time transport choices.
Design an Airbnb-like marketplace API — listing management, search, booking and availability, reviews, and two-sided marketplace trade-offs.