ACID-compliant, high-concurrency P2P payments backend. Features deterministic row locking to prevent double-spending, durable idempotency, transactional outbox event streaming, and AI-driven financial insights.
docker kubernetes redis distributed-systems spring-boot postgresql rate-limiting event-driven cloud-native apache-kafka testcontainers idempotency resilience4j concurrent-transactions transactional-outbox pessimistic-locking acid-transactions spring-ai java-25 payments-engine
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Updated
Oct 6, 2026 - Java