``` fun updateDetails() = GlobalScope.launch(<http://Dispatchers.IO|Dispatchers.IO>) { // loop f...

# coroutines

[dharrigan]

fun updateDetails() = GlobalScope.launch(<http://Dispatchers.IO|Dispatchers.IO>) {
    // loop forever
    updateDetailsAsync()
    // wait until updateDetailsAsync is done
}

fun CoroutineScope.updateDetailsAsync() {
    does an REST API lookup
    writes into a database
}

[spand]

Why doesnt a while (true) loop cut it?

[dharrigan]

That's what I thought about doing...but I wanted to know if there was a kotlin/coroutine way

[dharrigan]

more idomatic with using coroutines

[dharrigan]

I suppose this will do:

[spand]

A key design feature of coroutines is that sequential stuff looks and acts the same as in "normal" kotlin

[dharrigan]

do {
updateDetailsAsync()
delay(MINUTES.toMillis(1))
} while (true)

[dharrigan]

Thanks Johannes! 🙂

[dharrigan]

I suppose another way is for the CoroutineScope.updateDetailsAsync() to return a Job, then join on the job

[spand]

Or just make it suspend ?

[dharrigan]

great!

[Dominaezzz]

Perhaps while(isActive) is a bit better.

[spand]

Why ?

[Dominaezzz]

It allows for cancellation if need be.

[spand]

So does calling a suspend function no ?

[Dominaezzz]

Yes your code allows for cancellation as it is but you asked for idiomatic.

[dharrigan]

ta! 🙂