GatewayUtilServiceImpl.java

@Service
public class GatewayUtilServiceImpl implements GatewayUtilService {

    @Autowired
    private LoadBalancerClient loadBalancer;

    @Override
    public PaymentGateway getPaymentGateway() {

        ServiceInstance instance = loadBalancer.choose("payment-gateway");

        if (instance instanceof RibbonLoadBalancerClient.RibbonServer) {
            Server server = ((RibbonLoadBalancerClient.RibbonServer) instance).getServer();

            if (server instanceof GatewayServer) {
                return ((GatewayServer) server).getGateway();
            }
        }

        throw new IllegalArgumentException("No payment gateway found!");
    }

}