If I have a list of Deferred's created inside a `supervisorScope` using `async` . What is the most e...

# coroutines

[Mark Allanson]

If I have a list of Deferred's created inside a supervisorScope using async . What is the most efficient way to await for the first failure of any of the jobs? At the moment I am looping the jobs, saving away successes, and capturing the first failure, then when that happens issuing a "controlled cancellation on the others" and using a yield (or delay) inside the tight loop, but it feels like there must be a better way of doing this

[Mark Allanson]

coroutineScope doesn't work for me here because depending on input I need to either allow the remaining jobs to complete, or force them to fail.

[ephemient]

awaitAll() will throw the first exception if any

[ephemient]

then you can simply cancel all rest, it's a no-op if a job is already complete

[Mark Allanson]

👍

[Mark Allanson]

Thanks!

[Mark Allanson]

Not sure how I didn't run into awaitAll

[Mark Allanson]

Yep this worked well for my use case, converted about 40 lines of code to 10