This project demonstrates a microservices architecture for an e-commerce platform using Spring Boot, Spring Cloud, and Resilience4J for fault tolerance.
The system consists of several microservices:
- API Gateway: Acts as the single entry point for client applications.
- Product Service: Manages product data.
- Order Service: Handles order processing.
- Inventory Service: Checks product availability.
- Discovery Server: Service registry for service discovery.
- Notification Service: Sends notifications upon specific events.
Each microservice has its own application.yml or application.properties file for configuration. Key configurations include:
- Spring Cloud Gateway routes for routing requests to the appropriate services.
- Eureka for service discovery.
- OAuth2 for securing API endpoints.
- Zipkin for distributed tracing.
- Prometheus for monitoring.
- Java 11+
- Maven or Gradle
- Docker (optional)
- Clone the repository.
- Navigate to each service directory and build it using
mvn clean installorgradle build. - Start the Discovery Server (
./start-discovery-server.sh). - Register services with the Discovery Server.
- Start the API Gateway (
./start-api-gateway.sh).
Acts as the entry point for all client requests. It routes requests to the appropriate microservice based on the path.
Manages product data. Allows creating new products and retrieving all products.
Handles order placement. It checks product availability through the Inventory Service before placing an order.
Checks if products are in stock. It communicates with the Product Service to fetch product details.
A service registry that allows services to discover each other dynamically.
Sends notifications when orders are placed. It listens to Kafka topics for such events.
- Zipkin: Used for distributed tracing across services.
- Prometheus: For monitoring metrics.
- Resilience4J: Provides fault tolerance features like circuit breakers and rate limiters.
Contributions are welcome Please submit a pull request or open an issue to discuss potential improvements or additions.
This project is licensed under the MIT License.