Currently, Flow.mapAsync and Flow.mapAsyncUnordered always pull upstream even if there is no demand from downstream and then buffer. However, there are situations where one might want to way for explicit downstream demand before pulling. For example, let's say that the next upstream item depends on the results of the previous item and that you need to feed that back into the upstream before pulling again. In its current form, Flow.mapAsync will pull before that feedback loop has been completed.
Is there any way to work around that other than writing a custom GraphStage? Thanks Jeff -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
