hello, was wondering if there is some nice idiomatic way of error handling for awaiting for a list o...

# coroutines

[Dariusz Kuc]

hello, was wondering if there is some nice idiomatic way of error handling for awaiting for a list of deferred to complete, e.g. awaitAll will throw first encountered exception

Is there a better way than

val results: List<Deferred<Any>> = ... // whatever
results.joinAll()
for (result in results) {
  val error = result.getCompletionExceptionOrNull()
  if (error != null) {
    // handle error
  } else {
    result.await()
  }
}

[louiscad]

Either you handle errors outside of the local coroutineScope { … } inside which you start your `async`/`launch` child coroutines, or you handle errors inside the `async`/`launch` blocks themselves, recovering and letting other coroutines of the scope continue to execute.

[Dariusz Kuc]

👍 doing the try/catch within async block should do the trick, then i can just do awaitAll()