Focused experiments; Each folder answers one real question I had while shipping things. NN-name/ per topic — open the folder's README for the full story.
- 01 — REST vs GraphQL · FastAPI hybrid: REST + SSE for streaming, GraphQL for the data plane
- 02 — Caching · HTTP caching (ETag/304) vs application cache vs LLM response caching, and the invalidation trap
- 03 — Rate limiting · token bucket vs sliding window, per-client budgets, 429 + Retry-After, and limiting by tokens
04 Load balancing · 05 Message queues · 06 WebSockets vs SSE vs polling · 07 Observability · 08 Auth & sessions