Is there a way to implement the following? ```fun main() { runBlocking { first() } }...

# coroutines

[Norbi]

Is there a way to implement the following?

fun main() {
    runBlocking {
        first()
    }
}

suspend fun first() {
    second()
}

fun second() {
    // How? :(
    // runBlocking { // Would be incorrect based on the docs...
        third() // Compilation error: Suspend function 'third' should be called only from a coroutine or another suspend function
    // }
}

suspend fun third() {
}

[Patrick Steiger]

Make second suspend?

[Norbi]

Make second suspend?

Yes 😄

I tried to simplify my problem, the related functions are in an external dependency I don't want to modify.
Let's suppose that only main() and third() are my functions.

I feel that the restriction of using runBlocking() in a coroutine is a major problem in the API, I often struggle because many library functions are non-suspend but I have to call suspend library functions from them 😕.

[Sam]

Assuming second() doesn't need to wait for third() to complete, the answer is to use a coroutine scope to launch a new coroutine.

fun second() {
    myScope.launch { third() }
}

As for where myScope comes from, that depends on your app.