ConfigServerApplication.java

package com.checkout.paymentgw.config;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;

/**
 * Centralised configuration. Each service downloads its config at boot and can
 * refresh at runtime via {@code POST /actuator/refresh}.
 *
 * <p>Backed by a git repo (locally a folder; in AWS use a private GitHub repo,
 * AWS CodeCommit, or replace with <strong>AWS AppConfig / Parameter Store</strong>).
 */
@SpringBootApplication
@EnableConfigServer
public class ConfigServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConfigServerApplication.class, args);
    }
}