Is there an idiomatic solution to the following pr...

# rx

[kirillrakhman]

Is there an idiomatic solution to the following problem? (using RxJava2)
I'm observing a Flowable<List<string>> (say a list of chat rooms I'm part of). Whenever the flowable emits, I'm creating a Flowable<Room> per ID to get the details of the room (this is cheap in firebase). When all the flowables have emitted, I want to observe the final list. The tricky part is, the flowables can emit multiple times, so when each of them emits a second time, I want to observe the whole, modified list again.