Angular >= 2 - Service listening to change in another service

Question

I have service which first goes to get some status and does

this.changedSource.next(value) changedSource is 'rxjs/Subject'

second service which subscribes to it this.firstService.changed$.subscribe((value) => this.value = value)

second service comes in picture later at the stage so I think it misses the first change. How to resolve this?

score 3 · Accepted Answer · answered Mar 28 '17 at 00:23

3

If the second service is not subscribed to the observable from the first service at the time it fires, Subject is the wrong choice. If you change it to BehaviorSubject, it will replay the current value to all subscribers who join after the observable fired.

answered Mar 28 '17 at 00:23

Tyler Jennings

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Thanks a lot. Worked. this also helped http://stackoverflow.com/questions/39494058/angular-2-behavior-subject-vs-observable – Sumant Mar 28 '17 at 00:26

Angular >= 2 - Service listening to change in another service

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