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flatMap() operator in Mono

Anjali Sharma answered on January 6, 2023 Popularity 1/10 Helpfulness 1/10

answer flatMap() operator in Mono

flatMap() operator in Mono

Comment

The map operator applies a one-to-one transformation to stream elements, while flatMap does one-to-many.

public Mono<List<String>> namesMono_flatmap(int stringLength) {
        return Mono.just("alex")
                .map(String::toUpperCase)
                .filter(s -> s.length() > stringLength)
                .flatMap(this::splitStringMono); //Mono<List of A, L, E  X>
    }

    public Flux<String> namesMono_flatmapMany(int stringLength) {
        return Mono.just("alex")
                //.map(s -> s.toUpperCase())
                .map(String::toUpperCase)
                .flatMapMany(this::splitString_withDelay);
    }

https://github.com/dilipsundarraj1/reactive-spring-webflux/blob/springboot3.0/reactive-programming-using-reactor/src/main/java/com/learnreactiveprogramming/service/FluxAndMonoGeneratorService.java

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript mono

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