How to Convert RxJava (Single firstOrError() ) to Kotlin Flow?

Question

I have Observable on which i apply firstOrError() operator which return a Single<T> Same i want to convert into Kotlin Flow. I want there must be some mechanism which return a flow with 1st item or error. Do you have any idea on this how i can achieve that?

Answer 1

To convert Observable into Flow, you can use asFlow from kotlinx.coroutineslibrary.

Note that there is no way to convert Single into Flow because those are two incompatible types (single-value vs stream). But you can convert your Observable into Flow with asFlow first and then instead of firstOrError() use first().