This project is a modern Banking Microservices Architecture developed using Spring Boot, gRPC, Oracle Database, and Docker. It includes several core services to manage accounts, perform transfers, and generate statements.
- ☕ Java 21 with Virtual Threads
- 🌱 Spring Boot 3.x
- 🛠 gRPC (Google Remote Procedure Call)
- 🐳 Docker + Docker Compose
- 🛢 Oracle Database
- 🧪 JUnit, Mockito, Jacoco
- 🧵 Virtual Threads for concurrency
- 📘 Postman (for testing gRPC via REST Gateway)
- Manages account creation, updates, and lookup.
- Uses JPA to persist data to Oracle.
- Exposes gRPC API.
- Connected to
accountRepository.
- Handles money transfers between accounts.
- Ensures consistency and integrity of transactions.
- Validates account balances before transfer.
- Generates account statements.
- Fetches transactional history from the database.
- Potential for report exporting in future versions.
┌────────────────────┐
│ REST Gateway │ ← REST (Postman)
└────────┬───────────┘
│
┌─────▼──────┐
│ gRPC │
└─────┬──────┘
┌───────────────┼────────────────┐
▼ ▼ ▼
Account Service Transfer Service Statement Service
│ │ │
Oracle DB Oracle DB Oracle DB