withRefresh = false; packages$: Observable<NpmPackageInfo[]>; private searchText$ = new Subject<string>(); search(packageName: string) { this.searchText$.next(packageName); } ngOnInit() { this.packages$ = this.searchText$.pipe( debounceTime(500), distinctUntilChanged(), switchMap(packageName => this.searchService.search(packageName, this.withRefresh)) ); } constructor(private searchService: PackageSearchService) { }
References
https://angular.io/guide/http#configuring-the-request