I am new to Akka. 
I would like to know how to return some result from onSuccess method. 

I mean, If I would like to extract the response from an actor after it 
executes completely. I need to get the result and add some extra messages 
and send the result back to the rest client. 

I am not able to find out if it is possible to do so.

//in my rest controller

        Future<Object> future = getItemService(id);
        future.onSuccess(
                  //retrieve the result fromthe future and wrap the result 
with some extra info and return to the caller   );

Is there any way to do that? 

 I also know that we can use Await and then convert the result. But wont it 
affect the asynchronous behaviour ?

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