Access state inside an ngrx effect

access-state.ts

// In the Effect's constructor, inject store.
constructor(private store: Store<AppState>)
...
@Effect()
fetchUserProfile$: Observable<Action> = this.actions$.pipe(
  ofType<FetchUserProfile>(UserActionTypes.FETCH_USER_PROFILE),
  withLatestFrom(this.store),
  mergeMap(([action, appState]) => {
    return this.http
    .get(
      `${environment.apiUrl}/api/user/${appState.user.id}`
    )
    .pipe(
      map((response: any) => {
        return new FetchUserProfileSuccess(response.data);
      }),
      catchError(error => of(new FetchUserProfileFailure(error)))
    );
  })
);