Hey everyone, when I'm converting a callback based...

# coroutines

[Jonas]

Hey everyone, when I'm converting a callback based API to a Flow using callbackFlow , do I have to call close() after trySend(...) when the call back only emits once?

[gildor]

Depends on your use case

[gildor]

If you call close(), flow will cancrl

[gildor]

It's not necessary what you want, because it means it doesn't support multiple emissions

[gildor]

And if it's the case, maybe you don't need flow at all and suspend function is enough

[Jonas]

The callback will only every emit once.

[gildor]

In this case you need suspens function

[Jonas]

The context needs a Flow sadly

[gildor]

You can convert suspend function to flow, there is an extension for this

[Jonas]

Oh nice!

[Jonas]

I'll check it out

[Jonas]

Do you have the name of the function on top of your head by any chance?

[Jonas]

Thanks for you help!

[gildor]

https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/as-flow.html

[louiscad]

You can also just do flow { emit(someSuspendFunction()) }

[gildor]

yep, also an option of course. Just like explicitness of converter