To log incoming request details and corresponding responses in Spring Cloud Gateway, you can use the GatewayFilter to store the log ID and then retrieve it later for the response. Here’s how you can do it:

• Create a Custom Gateway Filter:

@Component
public class LoggingGatewayFilter extends AbstractGatewayFilterFactory<LoggingGatewayFilter.Config> {

    public LoggingGatewayFilter() {
        super(Config.class);
    }

    @Override
    public GatewayFilter apply(Config config) {
        return (exchange, chain) -> {
            String logId = service.logRequest(/* parameters here */);
            exchange.getAttributes().put("REQ-LOG-ID", logId);

            return chain.filter(exchange).then(Mono.fromRunnable(() -> {
                String requestLogId = exchange.getAttribute("REQ-LOG-ID");
                // Store response details using requestLogId
                storeResponseDetails(requestLogId, /* response details here */);
            }));
        };
    }

    public static class Config {
        // Configuration properties can be added here if needed
    }
}

• Register the Filter:

@Configuration
public class GatewayConfig {

    @Bean
    public RouteLocator customRouteLocator(RouteLocatorBuilder builder, LoggingGatewayFilter loggingGatewayFilter) {
        return builder.routes()
                .route("your_route_id", r -> r.path("/your-path/**")
                        .filters(f -> f.filter(loggingGatewayFilter))
                        .uri("http://your-backend-service"))
                .build();
    }
}

• Store Response Details:
  In the storeResponseDetails method, implement logic to save the response details corresponding to the requestLogId.

I hope it’ll be helpful to solve problem you’re facing.