Financial core
Accounts, transfers, and payment requests are protected by transactions and PostgreSQL constraints.
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Digital bank
Auronix
End-to-end financial platform with accounts, transfers, and payment requests.
Technical vision
Digital bank oriented to financial consistency
Auronix combines Java/Spring Boot, Angular, and PostgreSQL with messaging, SSE, Redis Pub/Sub, and declarative infrastructure.
ImpactOutbox
persistence and messaging without loss or duplication of financial events
Financial events
Transactional Outbox processes batches with FOR UPDATE SKIP LOCKED and idempotent consumers by eventId.
Realtime and delivery
SSE with Redis Pub/Sub propagates balances and transactions across multiple replicas.
Execution flow
Main flow
Digital bank oriented to financial consistency
Auronix combines Java/Spring Boot, Angular, and PostgreSQL with messaging, SSE, Redis Pub/Sub, and declarative infrastructure.
LOCK ACQUIRED -> BALANCE VALIDATED -> COMMIT -> EVENT DELIVERED
- 01
Operation enters through the Angular client
The financial action reaches the Spring Boot backend and goes through domain validation before movement.
- 02
Consistency is resolved in the database
Pessimistic locks in deterministic order, balance revalidation, and constraints reduce risk in concurrent transfers.
- 03
Events are published safely
The Outbox separates persistence from messaging to avoid inconsistency between stored data and financial events.
Engineering decisions
Architecture
Transactional Outbox
The Outbox avoids inconsistencies between persistence and messaging in financial operations.
Deterministic concurrency
Pessimistic locks in deterministic order and balance revalidation protect simultaneous transfers.
Verifiable infrastructure
Terraform, VPC, EKS, Kubernetes, health checks, graceful shutdown, Docker Compose, kubeconform, CI/CD, and Micrometer shape delivery.
Risk controls
Reliability
Event loss or duplication
Idempotent consumers by eventId and batch processing with FOR UPDATE SKIP LOCKED reduce duplicate effects.
Out-of-sync clients
SSE with Redis Pub/Sub reduces polling and keeps clients synchronized across replicas.
Stack
Application
- Java
- Spring Boot
- Angular
Data and events
- PostgreSQL
- RabbitMQ
- Redis Pub/Sub
- SSE
Infrastructure
- Terraform
- EKS
- Kubernetes
- Docker Compose
- kubeconform
- Micrometer
Outcome
Financial consistency with asynchronous processing
The project concentrates concurrency, messaging, realtime, and infrastructure decisions for a financial platform.
- persistence and messaging without loss or duplication of financial events
- Outbox