Source/Flow.fromMaterializer

Defer the creation of a Source/Flow until materialization and access Materializer and Attributes

Simple operators

Signature

def fromMaterializer[T, M](factory: (Materializer, Attributes) => Source[T, M]): Source[T, Future[M]]
def fromMaterializer[T, U, M](factory: (Materializer, Attributes) => Flow[T, U, M]): Flow[T, U, Future[M]]

Description

Typically used when access to materializer is needed to run a different stream during the construction of a source/flow. Can also be used to access the underlying ActorSystem from Materializer.

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