API

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1. 01 Explain REST constraints and common anti-patterns in REST API design. Medium
2. 02 Design a REST API for a paginated, filterable product catalog. Hard
3. 03 Explain how GraphQL solves over-fetching and under-fetching compared to REST. Medium
4. 04 Design a GraphQL schema and resolver strategy for a nested comments feature, avoiding the N+1 problem. Hard
5. 05 Explain gRPC and when it's a better fit than REST or GraphQL for frontend-backend communication. Medium
6. 06 What are the tradeoffs of using gRPC-Web in a browser-based frontend? Hard
7. 07 Explain how WebSocket connections work and their tradeoffs versus HTTP polling. Medium
8. 08 Design a real-time notification system using WebSockets with reconnection and backoff handling. Hard
9. 09 Explain Server-Sent Events and when they're preferable to WebSockets. Medium
10. 10 Design a live-updating dashboard using SSE for one-directional data streams. Hard
11. 11 Explain short polling and its tradeoffs for real-time-ish features. Medium
12. 12 Design a polling strategy for a job-status page that balances freshness and server load. Hard
13. 13 Explain long polling and how it differs from short polling and WebSockets. Medium
14. 14 Compare long polling, SSE, and WebSockets for a chat application - which would you choose and why? Hard