Contribute a Mutiny module to kotlinx.coroutines/reactive

[heubeck]

There's a collection of Kotlin coroutine support modules for different reactive libraries.

Moving the coroutines integrations from mutiny-kotlin to https://github.com/Kotlin/kotlinx.coroutines/tree/master/reactive would make reuse of some exising Publisher/Coroutine implementions over there possible.

On the other side, it would raise awareness for Mutiny in the Kotlin community.

Phases:

1. contribute kotlinx-coroutines-reactive-mutiny
2. refactor mutiny-kotlin to use kotlinx-coroutines-reactive-mutiny

Considerations:

• additional dependencies for mutiny-kotlin and all downstream projects
• one of the downstream projects is Quarkus, which means that native image builds needs to be possible with kotlinx-coroutines-reactive
• changes would have longer lead time, due to upstream contribution to kotlinx-coroutines-reactive - could be mitigated by a multi-phase fix in mutiny-kotlin first, contribution to coroutines-reactive, adoption of that fix in mutiny-kotlin.

/cc @hantsy @Sanne @MartinX3 @rgmz @FWest98 @jponge

[cescoffier]

Is this project using Java Flow or still the legacy reactive stream API?

[heubeck]

Is this project using Java Flow or still the legacy reactive stream API?

Flow: https://github.com/Kotlin/kotlinx.coroutines/tree/master/reactive/kotlinx-coroutines-jdk9

[hantsy]

Under this project, it includes several modules.

• kotlinx-coroutines-jdk9 for JDK 9 Flow
• kotlinx-coroutines-reactive for Reactive Streams APIs
• kotlinx-coroutines-reactor for Reactor, depends on kotlinx-coroutines-reactive
• kotlinx-coroutines-rx2 for RxJava 2, depends on kotlinx-coroutines-reactive
• kotlinx-coroutines-rx3 for RxJava 3, depends on kotlinx-coroutines-reactive

[hantsy]

The new kotlinx-coroutines-mutiny can reuse kotlinx-coroutines-jdk9.

[jponge]

Sounds good

[hantsy]

Any update for this?

[heubeck]

Not yet, pardon me. Lack of time atm, but honestly planning to proceed asap.

[jponge]

Don't worry @heubeck 👍