Hey guys I’m trying to understand how `suspendCoroutine` works, I tried to implement an example, <he...

# coroutines

[Ismaïl]

Hey guys
I’m trying to understand how suspendCoroutine works, I tried to implement an example, here is the GitHub Gist link
Does this code make sense ? it works but I was wondering if it can be improved somehow
Thanks in advance

[franztesca]

coroutineScope { launch(IO) { ... } }

Is not really idiomatic. It does the same as

withContext(IO) { ... }

Also, IO context is used to bridge blocking code to suspend functions. In your case, you are using an asynchronous function underneath, so there is no need of the IO context, so no need of the withContext too

[Ismaïl]

Using withContext doesn’t create a CoroutineScope, does it ?
If it doesn’t, then coroutineScope is better, so we have children coroutines and not sibling.
Am I wrong ?

[franztesca]

It does (look at the receiver in the lambda of withContext). But you don't even need a coroutine scope as you don't really need to launch any coroutine in sendRequestAndPrintResultSuspendable, because you can just call the other suspending function directly.