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dkomanov/ForComprehensions6.scala

Created May 22, 2020 22:18
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[writing-async-app-in-scala-part-1] for-comprehensions 6
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ForComprehensions6.scala
implicit class FutureExtensions[T](val future: Future[T]) extends AnyVal {
def filterOrFail(f: T => Boolean, e: => Throwable): Future[T] =
future.flatMap(value => if (f(value)) Future.successful(value) else Future.failed(e))
}
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