``` callState switchMap callState gt contactRepository conta kotlinlang #rx

``` callState .switchMap { callState -> cont...

ursus

11/01/2018, 4:00 AM

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callState
	.switchMap { callState ->
		contactRepository.contactByUsernameObservable(callState.username)
			.map {
				callState to it
			}
		}
	}
	... work with (CallState, Contact)

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