How to transform Flow<List<T>> to Flow<T> in Kotlin?

Issue

I get a flow of type Flow<List<T>> and I need to get a flow of type Flow<T> out of it.

I tried:

outerFlow.onEach { items -> items.onEach { flow { emit(it) } }

This does not work. How can I achieve this?

Solution

https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/flat-map-concat.html

outerFlow.flatMapConcat { it.asFlow() }

Answered By - IR42