public class PushPipeline {

    private HotelPriceConsumer hotelPriceConsumer;

    private PriceBatchCreator priceBatchCreator;

    private PriceBatchToTransactionConverter priceBatchToTransactionConverter;

    private HttpClient httpClient;

    private PriceLogger priceLogger;

​

    private Disposable mainPipeline;

​

    @PostConstruct

    void initMainPipeline() {

        // For bootstrapping the pipeline with Spring

        // subscribe() does not block the calling thread here!

        mainPipeline: mainPipeline().subscribe();

    }

​

    private Flux<Void> mainPipeline() {

        hotelPriceConsumer

            .consumeKafkaTopic()

            .transformDeferred(priceBatchCreator::createBatches)

            .transformDeferred(priceBatchToTransactionConverter::convert)

            .flatMap(transaction -> httpClient

                .send(transaction)

                .then(priceLogger.log(transaction)))

            .onErrorContinue((t, o) -> {/* Some logging + metrics */}));

    }

}