Type mismatch on action on ngrx effect

Question

I created an actions file with these 3 actions:

export const showLoading = createAction(`[application] Show warning notification`);
export const hideLoading = createAction(`[application] Show error notification`);
export const showHttpResponseError = createAction(`[application] Show success notification`, props<{ error: HttpErrorResponse, nextAction: Action }>());

export type Actions = ReturnType<
typeof showLoading |
typeof hideLoading |
typeof showHttpResponseError
>;

Then I created an effects file like this:

@Injectable()
export class ApplicationEffects
{
    constructor(private actions$: Actions, private dialogsService: DialogsService, public notificationsService: NotificationService, private router: Router) { }

    @Effect() public erroHandler$ = this.actions$
        .pipe(
            ofType(ApplicationActions.showHttpResponseError.type),
            switchMap(action => {
                    const emptyAction = { type: 'noop' };
                    const error = HttpErrorHandler.handle(action.error);

                    if (error.redirectTo != null) {
                        this.router.navigate([error.redirectTo]);
                        return of(emptyAction);
                    }

                    if (action.error.status === 400) {
                        this.notificationsService.notifyWarning('AVISO', error.messages);
                    }
                    else {
                        this.dialogsService.errorDialog('ERRO', error.messages[0]);
                    }

                    return action.nextAction ? of(action.nextAction) : of(emptyAction);
                },
            ));
}

But for some reason, the VS Code intellisense is not recognizing the action type in the switchMap, it says it's of type never:

Am I missing something? Or how could I enforce the type of it, since the action is created using ngrx action creators I don't have an explicity type for it.

Answer 1

For completeness, there are multiple ways:

1) type of the ofType operator

ofType<AddAction>(CounterActions.AddAction)

2) type the injected actions, like you already answered (starting from NgRx 7)

constructor(private actions$: Actions<CounterActions.Actions>

3) use createEffect in combination with createAction (starting from NgRx 8)

foo$ = createEffect(() => this.actions$.pipe(
    ofType(addAction),
    ...
);