if I have a long running task which I'm collecting with ```longRunningTask().collect{ // ... }```...

# getting-started

[mgrazianodecastro]

if I have a long running task which I'm collecting with

longRunningTask().collect{
   // ...
}

is there a way of canceling in the middle of the collecting? Like: I wan the function to finish itself and stop doing what it was doing

[Sam]

You could consider using transformWhile which lets you return true or false to indicate whether you want to continue collecting the flow

[Sam]

I’m not sure why collectWhile (which exists) isn’t a public function 🤔 but transformWhile { … }.collect() achieves the same thing

[mgrazianodecastro]

from what you suggested, looking at the docs, we have takeWhile

[Wout Werkman]

what type* does longRunningTask return?

[mgrazianodecastro]

just a String

[Sam]

A String, or a Flow<String>?

[mgrazianodecastro]

Flow<String>

[Sam]

Just checking 😄

[mgrazianodecastro]

sometimes I'm lazy to explain things, my bad

[mgrazianodecastro]

since the condition in my case is to check whether a new message arrived in a channel, channel.isEmpty() , the takeWhile{ channel.isEmpty } seems to be working