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spring-boot-demo/idempotency/output/02-mismatch-redis.txt
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asmhatreandClaude Sonnet 5.5 6a36e84858 Add idempotency module: Idempotency-Key for POST APIs on Spring Boot 4.1.2 with Redis and Postgres stores
One servlet filter, two interchangeable stores, 18 tests (9 scenarios x 2 stores) against a real
redis-server 7.0.15 and PostgreSQL 16.15, and 20 captured transcripts under output/: replay, 422 on a
changed body, concurrent duplicates, expiry, the crash window and a handler slower than the lock.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b5yg8grY17JsVAJviV
2026-11-08 18:22:05 +00:00

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store: redis
key=k-2 amount 1999 -> HTTP 201 replayed=- retry-after=- {"id":1,"customer":"cus_42","amount":1999,"currency":"INR"}
key=k-2 amount 2999 -> HTTP 422 replayed=- retry-after=- {"title":"Idempotency-Key was already used with a different request","status":422}
key=k-2 same JSON, extra spaces -> HTTP 422 replayed=- retry-after=- {"title":"Idempotency-Key was already used with a different request","status":422}
key=k-3 amount 2999 -> HTTP 201 replayed=- retry-after=- {"id":2,"customer":"cus_42","amount":2999,"currency":"INR"}
payments in the table: 2