How to limit the request/second with WebClient?

Question

I\'m using a WebClient object to send Http Post request to a server. It\'s sending a huge amount of requests quite rapidly (there is about 4000 messages in a

Answer 1

I use this to limit the number of active requests:

public DemoClass(WebClient.Builder webClientBuilder) {
    AtomicInteger activeRequest = new AtomicInteger();
    this.webClient = webClientBuilder
            .baseUrl("http://httpbin.org/ip")
            .filter(
                    (request, next) -> Mono.just(next)
                            .flatMap(a -> {
                                if (activeRequest.intValue() < 3) {
                                    activeRequest.incrementAndGet();
                                    return next.exchange(request)
                                            .doOnNext(b -> activeRequest.decrementAndGet());
                                }
                              return Mono.error(new RuntimeException("Too many requests"));
                            })
                            .retryWhen(Retry.anyOf(RuntimeException.class)
                                    .randomBackoff(Duration.ofMillis(300), Duration.ofMillis(1000))
                                    .retryMax(50)
                            )
            )
            .build();
}

public Mono call() {
    return webClient.get()
            .retrieve()
            .bodyToMono(String.class);
}