| Write java code to Build an API endpoint for request deduplication with idempotency keys using Quarkus. accepts Idempotency-Key header; stores request hash; returns cached response for duplicate keys; expires after TTL. Structure the project as: src/main/java/filters/, models/, cache/. Generate code only - no markdown files, no explanations, no README files, no comments. Keep output concise and purpose-ready. |