A retry function

[johanandren]

Given a block that creates a future a it would be nice to have something that will retry that future if it fails.

For example, given a max number of retries and a predicate to decide if a given exception should lead to retry or not, something like this:

val retryFor = {
  case ex: RetryableException => true
  case _ => false
}
val result: Future[Int] = retry(maxTimes = 3,  decider = retryFor) {
  doSomeFutureStuff(): Future[Int]
}

[johanandren]

Additionally, almost the same but with exponential back off?