im working with an async library that returns a Co...
# announcementsx
xii
08/21/2020, 2:55 PMim working with an async library that returns a CompletableFuture; how could i convert it into a coroutine? (like Mono.fromFuture() does)
a
Adam Powell
08/21/2020, 2:57 PMx
xii
08/21/2020, 3:29 PM@Adam Powell yes, that is useful, but what if I don't want to await it yet?
xii
08/21/2020, 3:29 PMwhat if i want await to run in another layer?
a
Adam Powell
08/21/2020, 3:31 PMare you asking how to get a
Deferred.asDeferredx
xii
08/21/2020, 3:32 PMthat's it, thank you
👍 1
xii
08/21/2020, 3:32 PMstill new to this so im lost on some keywords like deferred, too used to javascript async
xii
08/21/2020, 3:44 PM@Adam Powell last question, what if you want to do something on a deferred function once its done, without actively awaiting it?
xii
08/21/2020, 3:44 PMlike an .onComplete{ println(it) }
a
Adam Powell
08/21/2020, 3:45 PMif that's what you're looking to do, I don't think you want to convert it to a
Deferred Copy code
launch {
val result = future.await()
println(result)
}x
xii
08/21/2020, 3:46 PMbut in that case you're awaiting for it on that step
xii
08/21/2020, 3:46 PMi don't want to actively await it, just that once it completes it does something in particular with it
xii
08/21/2020, 3:47 PMso that if the caller of the function actively awaits for it, then the data structure it receives will be what i expect it to be
xii
08/21/2020, 3:48 PMan example in pseudocode:
Copy code
fun parentFunction(){
val test = childFunction.await()
return test + test
}
fun childFunction(){
(outside function that i have no control of).onComplete{ it.toNumber() }
}a
Adam Powell
08/21/2020, 4:35 PMthat is not the idiomatic way to use coroutines. Suspend functions naturally await their results. The
.awaitCompletableFuturesuspendAdam Powell
08/21/2020, 4:36 PMIf a caller does not want to actively await the result of a suspend function, it is up to that caller to
launch {}async {}x
xii
08/21/2020, 7:17 PMalright, thank you
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