switchMap Example

search-bar.effects.ts

@Effect()
findAddresses: Observable<any> = this.actions.pipe(
  ofType(LocationActionTypes.FindAddresses),
  map(action => action.partialAddress),
  debounceTime(400),
  distinctUntilChanged(),
  switchMap(partialAddress => this.backend
    .findAddresses(partialAddress)
    .pipe(
      map(results => new FindAddressesFulfilled(results)),
      catchError(error => of(new FindAddressesRejected(error)))
    )
  )
);