You could use Await.ready
which simply blocks until the Future has either succeeded or failed, then returns a reference back to that Future.
From there, you would probably want to get the Future's value
, which is an Option[Try[T]]
. Due to the Await.ready
call, it should be safe to assume that the value
is a Some
. Then it's just a matter of mapping between a Try[T]
and an Either[Throwable, T]
.
The short version:
val f: Future[T] = ...
val result: Try[T] = Await.ready(f, Duration.Inf).value.get
val resultEither = result match {
case Success(t) => Right(t)
case Failure(e) => Left(e)
}