Monitoring Akka Streaming

[Arun Sethia]

Hi,

I have a requirement where we would like to know how many incoming messages are processed by flow. We can use Materializer with AtomicLong with Flow to do the same.

Any other alternative or in-built functionality in akka-stream API?

Thanks 

Arun 

[Filippo De Luca]

Hi,

I suppose you can use map and call a external service for each message at defined stage.

Even better you can build your own stage.

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[Richard Rodseth]

You can also use alsoTo to send stream elements to an actor or special purpose Sink. 

[Arun Sethia]

Thanks.

I would like to keep monitoring counters in the actorsystem, so those can be exposed via service to external world.