ngrx 8 when dispatching action store is undefined

Question

I have ngrx install on my angular 8 project. and when i dispacth action my store stay sill undefined

here is my code

 @NgModule({
  declarations: [
    AppComponent,
    HeadComponent,
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    NgbModule,
    HttpClientModule,
    StoreModule.forRoot({ login : Reducer.reducer })
  ],
  providers: [{ provide: HTTP_INTERCEPTORS, useClass: ApiInterceptor, multi: true },],
  bootstrap: [AppComponent]

And

export const initialState: State = {
  logged : null
};

const loginReducer = createReducer(
    initialState,
    on(LoginAction.LOGIN, (state) => ({ ...state , logged : 1 })),
    on(LoginAction.LOGOUT , (state) =>  { console.log(state) ; const ret =  { ...state, logged : 0 } ; console.log( ret ); return ret })
)

export function reducer(state: State, action : Action) {
  loginReducer( state, action );
}

Here is the code where i trigger the action

 intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
        const request = req.clone({ url : environment.endpoint + req.url, setHeaders : {'Authorization':'Bearer '+ this.token.get()}});
        return next.handle(request).pipe( catchError((error: HttpErrorResponse, caught: Observable<HttpEvent<any>>) => {
            if( error && error.status === 401 ) {
                this.store.dispatch(Action.LOGOUT());
            }
            return throwError(error);
        }));
    }

here are my action

import { createAction} from "@ngrx/store";

export const LOGIN =    createAction('LOGIN');
export const LOGOUT =   createAction( 'LOGOUT' );

When the logout action is triggered, i can see a console log of my state that is

{ logged: 0 }

But when i subscripe

constructor( private http: HttpClient, private store : Store<Reducer.State>) {
        store.pipe(select('logged')).subscribe( elem => { console.log( elem )})

        http.get('/api/ping').subscribe(( data ) => {
            console.log( data );
        })


    }

I have got nothing in my log, could you help please ?

Answer 1

Logged does not exist on the global store state, but is a property of login (this is how you define it with StoreModule.forRoot), so you will have to do:

store.pipe(select('login', 'logged')).subscribe( elem => { console.log( elem )})

You will also have a return value from the reducer:

return  loginReducer( state, action );