Re: [I] Feature request: Add Flow#switchMap operator. [pekko]

["MartinHH (via GitHub)" <gi...@apache.org>]

MartinHH commented on issue #974:
URL: https://github.com/apache/pekko/issues/974#issuecomment-2692637693

   I used to use this operator a lot when dealing with various applications related to monitoring live data and always missed it when working with akka streams in the past. I'm currently not working on any of such projects - if I were, I'd happily submit a PR (and might as well still do that if I find the time).
   
   One thing though: from my experience (I might be biased due to the "live data" use cases I used it for), I'd strongly advocate for "Backpressures when: never." The way this operator works, only the very latest value from upstream should cause items to be emitted to downstream, so there is no sense in keeping anything but that one latest value (and the resulting substream) in the pipeline.


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