show the error and resume the stream

Question

I have a real-time search, but if for some reason the forkJoin fails, everything stops working. Any new words I try to look for after the error do not work. How can I show the error and resume the stream normally so that I can search for other words?

this.search$
  .distinctUntilChanged()
  .switchMap((query) => Rx.Observable.forkJoin(sources)) // If this fails the search stops working
  .subscribe((results) => console.log(results));

score 2 · Accepted Answer · answered Apr 01 '17 at 18:35

2

Try this:

this.search$
  .distinctUntilChanged()
  .switchMap((query) => Rx.Observable.forkJoin(sources)
    // return empty results object, I used an empty array...
    .catch(error => Observable.of([])))
  .subscribe((results) => console.log(results));

Notice that catch() is on forkJoin(), not on switchMap()...

answered Apr 01 '17 at 18:35

Sasxa

40,334
16
88
102

I also need to show the error, put this also inside the catch? – Apr 01 '17 at 18:59

show the error and resume the stream

1 Answers1