A microservices application is an architectural style in which a complex software system is composed of small, independent services that communicate with each other through well-defined APIs. Each service is designed to perform a specific business function and can be developed, deployed, and scaled independently. Key characteristics include:
- Decomposition: Breaking down the application into small, self-contained services.
- Independence: Each microservice operates independently of others.
- Autonomy: Microservices are developed and maintained by small, cross-functional teams.
- APIs and Communication: Services communicate through well-defined APIs.
- Scalability: Microservices can be scaled independently based on demand.
- Resilience: Failures in one microservice should not affect the entire application.
This microservices application is built using Java Spring Boot and incorporates several key technologies for creating a scalable and modular system. The application is designed with microservices architecture, making it flexible, maintainable, and capable of independent scaling.
- Spring Boot: A powerful framework for building Java-based microservices.
- JPA (Java Persistence API): Used for data persistence, enabling seamless interaction with a PostgreSQL database.
- Eureka: Service discovery tool for locating and managing microservices.
- Feign: Declarative web service client to simplify HTTP requests between microservices.
- API Gateway: A centralized entry point that manages and routes requests to microservices.
- Load Balancing: Distributes incoming network traffic across multiple microservices instances to ensure optimal resource utilization and performance.
- PostgreSQL: A robust relational database management system for data storage.