ExchangeFilterFunction for Global Resilience in WebClient

public ExchangeFilterFunction retryFilter() {
    return (request, next) -> next.exchange(request)
            .flatMap(response -> {
                if (response.statusCode().is5xxServerError()) {
                    return Mono.error(new RuntimeException("Server Error"));
                }
                return Mono.just(response);
            })
            .retryWhen(Retry.fixedDelay(3, Duration.ofSeconds(2)));
}
 
@Bean
public WebClient webClient() {
    return WebClient.builder()
            .filter(retryFilter())
            .build();
}