NotificationServiceApplication.java

package com.checkout.paymentgw.notify;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * Pure consumer of {@code payments.events}. Persists each event for audit and
 * fans out to merchant-configured channels (webhook/email). Demonstrates that
 * microservices are not all REST — async eventing decouples the slow notification
 * path from the payment hot path.
 */
@SpringBootApplication
public class NotificationServiceApplication {

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