fromCompletionStage

Send the single value of the CompletionStage when it completes and there is demand.

Source operators

Signature

def fromCompletionStage[T](future: CompletionStage[T]): Source[T, NotUsed]

Description

Send the single value of the CompletionStage when it completes and there is demand. If the CompletionStage completes with null stage is completed without emitting a value. If the CompletionStage fails the stream is failed with that exception.

emits the future completes

completes after the future has completed

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