Medium Mono & Flux

Collect Flux to List

Create a Flux emitting "Kotlin", "Spring", "Reactor" and collect all elements into a single List. Print the list.

Use Flux.just() with multiple values and collectList() to gather them into a Mono<List<T>>.

[Kotlin, Spring, Reactor]

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Main.kt

medium⏱ 15 minkotlinreactorchallengemono-flux

Starter

Create a Flux emitting "Kotlin", "Spring", "Reactor" and collect all elements into a single List. Print the list.

Use Flux.just() with multiple values and collectList() to gather them into a Mono<List<T>>.

Flux.just() can accept multiple values. collectList() gathers all emitted items into a single List, returning a Mono<List<T>>.

Expected output

[Kotlin, Spring, Reactor]

Collect Flux to List

Create a Flux emitting "Kotlin", "Spring", "Reactor" and collect all elements into a single List. Print the list.

Use Flux.just() with multiple values and collectList() to gather them into a Mono<List<T>>.

Expected

[Kotlin, Spring, Reactor]

Collect Flux to List

medium⏱ 15 minkotlinreactorchallengemono-flux

Starter

Create a Flux emitting "Kotlin", "Spring", "Reactor" and collect all elements into a single List. Print the list.

Use Flux.just() with multiple values and collectList() to gather them into a Mono<List<T>>.

Why this works

Flux.just() can accept multiple values. collectList() gathers all emitted items into a single List, returning a Mono<List<T>>.

Expected output

[Kotlin, Spring, Reactor]