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kotlinlang

Hey everyone !
After having used Kotlin for some time, I encountered usage of Reactor, Coroutines and a bit of Reactive with RxJava (Didn't knew that there was a RxKotlin at this time) but two main questions came to my mind... When should I use one over an other ? Would it be bad practice to use multiple of them in the same project ?

What makes them different from coroutine flow?

Use Reactor if you need to interact with Java code as well.
Otherwise, for kotlin only projects, coroutines are always preferred.