or do I need to do `flow { val result = client.dow...

# coroutines

[dave08]

or do I need to do flow { val result = client.download(url); emit(result) } instead of using flowOf?

[dave08]

Seems so... it wasn't so obvious though...

[Dominaezzz]

yes

[dave08]

Isn't there a shorter way for such a common pattern?

[Dominaezzz]

flatMapMerge is a bit of a hack. I'd recommend not using it for concurrency and just do async yourself.

[Dominaezzz]

https://github.com/Kotlin/kotlinx.coroutines/issues/1147

[dave08]

Thanks! Good reference... is there any mention of why its a hack there and why async would be better?

[Dominaezzz]

Maybe "hack" wasn't the right word but.... https://github.com/Kotlin/kotlinx.coroutines/issues/1147#issuecomment-487999918

[dave08]

Ok, now I got you, but in the meantime I don't see why https://github.com/Kotlin/kotlinx.coroutines/issues/1147#issuecomment-487531313

[dave08]

shouldn't be a partial solution... the name makes it pretty explicit...

[Dominaezzz]

Yeah it's not too bad.

[dave08]

Just wondering what bufferSize is for if there's concurrencyLevel param...?

[dave08]

It seems like the implementation has to be adapted a little since buffer() was added, but I can't seem to add that too?