Spring Boot Microservices

This project demonstrates building a microservices architecture using Java, Spring Boot, gRPC, Kafka, PostgreSQL, and Docker.
It covers key concepts such as service communication, authentication, event-driven architecture, and database integration.

Included Services

• Patient Service – Handles patient data and integrates with Billing and Notification services.
• Billing Service – Provides gRPC-based billing functionality.
• Notification Service – Publishes Kafka events for notifications.
• Auth Service – Manages user authentication and roles using JWT.

Key Features

• Microservice communication via gRPC
• Event-driven messaging with Kafka
• PostgreSQL for persistent storage
• Docker Compose for easy multi-container setup
• JWT-based security
• Protobuf integration for message serialization

Environment Setup

Uses .env for service configuration, including database URLs, Kafka settings, and gRPC ports.

Build & Run

Standard Maven build with Protobuf compilation and Spring Boot application startup.

Why It Matters

This project demonstrates practical use of microservice patterns, security, event-driven design, and containerization in a real-world backend system.

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📚 Original Course by Chris Blakely | YouTube Tutorial