Amadou A. DIENE aadiene
vespertilian
/ conditional_effects.ts
Created
February 9, 2017 04:09
Two options for conditional ngrx effects
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| @Effect() | |
| selectAndLoadStore$: Observable<Action> = this.actions$ | |
| .ofType(storeActions.SELECT_AND_LOAD_STORE) | |
| .withLatestFrom(this.store.select(ngrx.storeState)) | |
| .map(([action, storeState]) => [action.payload, storeState]) | |
| .switchMap(([storeName, storeState]) => { | |
| const existsInStore = Boolean(storeState.urlNameMap[storeName]); | |
| return Observable.if( | |
| () => existsInStore, | |
| Observable.of(new storeActions.SetSelectedStore(storeName)), |