Pinned Loading

1. fastapi-background-jobs-checkpoints-resume fastapi-background-jobs-checkpoints-resume Public

   FastAPI long-running background jobs with graceful shutdown, SQLite checkpoints, and auto-resume after hard kill.

   Python

2. idempotency-key-pattern idempotency-key-pattern Public

   Production Idempotency Key demo in Spring Boot 4 + Java 25. 3-phase flow, MySQL PK race handling, no external API inside DB transactions. Docker-ready.

   Java

3. cursor-pagination-pattern cursor-pagination-pattern Public

   Reference cursor-pagination pattern: anchor-based paging, composite cursor, opaque tokens, limit+1 hasMore - no OFFSET drift or COUNT(*).

   Java

4. llm-price-ranker-api llm-price-ranker-api Public

   FastAPI service that ranks LLM models by blended price from Hugging Face Router and exports a downloadable Excel report with charts.

   Python

5. email-hitl-agent email-hitl-agent Public

   LangGraph agent demo writing B2B emails with mandatory human approval before sending. It shows practical use of LangGraph's interrupt() mechanism - the agent pauses mid-execution, waits for user de…

   Python

6. event-loop-trap-gil-off event-loop-trap-gil-off Public

   Event loop trap, ThreadPoolExecutor fix & GIL-off benchmark - FastAPI demo on Python 3.14t (free-threaded)

   Python