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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)), | |
this.storeService.getByUrlName(storeName) | |
.map(store => new storeActions.LoadSelectedStoreSuccess(store)) | |
); | |
}); | |
@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]); | |
let obs; | |
if (existsInStore) { | |
obs = Observable.of(new storeActions.SetSelectedStore(storeName)); | |
} else { | |
obs = this.storeService.getByUrlName(storeName) | |
.map(store => new storeActions.LoadSelectedStoreSuccess(store)); | |
} | |
return obs; | |
}); // @Effect() | |
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