FraudCheckServiceApplication.java

package com.checkout.paymentgw.fraud;

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

/**
 * Pre-authorisation risk screening. Stateless rules + (small) reference data:
 * <ul>
 *     <li>BIN blacklist (PostgreSQL)</li>
 *     <li>Velocity counter (Redis, sliding window)</li>
 *     <li>Currency-amount thresholds (configuration)</li>
 * </ul>
 *
 * <p>Returns {@code ALLOW | REVIEW | BLOCK}. The orchestrator decides what to do
 * with {@code REVIEW} (queue, fall back to allow, etc.).
 */
@SpringBootApplication
public class FraudCheckServiceApplication {

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