<How to find first desired result from kotlin coro...

# stackoverflow

[user]

How to find first desired result from kotlin coroutines Deferred&lt;&gt; (server)
I’ve built a sharding library and i’m trying to add coroutine functionality to it. In the following snippet it returns the first true result that it finds:
override fun emailExists(email: String): Boolean {
return runBlocking {
shards
.asyncAll { userDao.emailExists(email) }
.map { it.await() }
.firstOrNull { it }
} ?: false
}

the shards.asyncAll method is:
fun async(
shardId: Long,
context: CoroutineContext =...