Entry Point

Main Application Class

The AryaBankingAuthServiceApplication class is the root of the microservice. It uses standard Spring Cloud annotations for service discovery and inter-service communication.

@SpringBootApplication(exclude = {
    DataSourceAutoConfiguration.class,
    DataSourceTransactionManagerAutoConfiguration.class,
    HibernateJpaAutoConfiguration.class
})
@EnableDiscoveryClient
@ComponentScan(basePackages = {"org.arya.banking.auth", "org.arya.banking.common"})
@EnableFeignClients(defaultConfiguration = OAuth2FeignConfig.class)
public class AryaBankingAuthServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(AryaBankingAuthServiceApplication.class, args);
    }
}

Key Configurations

1. JPA Exclusion

Since the Auth Service does not directly interact with a relational database—all identity operations are proxied through Keycloak—standard JPA and transaction management auto-configurations are excluded.

2. Service Discovery

The @EnableDiscoveryClient annotation registers the microservice with the Eureka server as arya-banking-auth-service.

3. Feign Client Security

The @EnableFeignClients annotation is configured with OAuth2FeignConfig.class to ensure that all outgoing service calls are automatically authenticated using the platform's OAuth2 standards.

Package Scanning

The application explicitly scans both its own package (org.arya.banking.auth) and the common package (org.arya.banking.common) to ensure all shared components, like the global exception handler, are correctly loaded.