@anthonyandroid Please check this section of official coroutine guide - https://github.com/Kotlin/kotlinx.coroutines/blob/master/coroutines-guide.md#concurrent-using-async Also you can check sample from kotlin-coroutines-retrofit (you can use this approach for any coroutine): https://github.com/gildor/kotlin-coroutines-retrofit#parallel-requests

so your suggestion is to use

await()

for each job I have, to make sure that all the jobs are completed?

General idea: build all the coroutines using

async

and when you build and start all of them (they started by default) you just call

await()

on all of them, so when last coroutine finished you will get your results

You are right; I was trying to call

start

for every job but now it looks nonsense. They should be started automatically and that sounds faster

Yeah, check

start

argument of

async

, you can see that async starts by default https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/async.html

very nice. thank u!