gistfile1.txt

@Injectable({
  providedIn: 'root'
})
export class AuthGuard implements CanActivate, CanLoad {
  constructor(private store: Store<AuthState>) {}

  canActivate(): Observable<boolean> {
    return this.store.pipe(
      select(selectIsAuthenticated),
      map(isValidToken => {
        if (!isValidToken) {
          this.store.dispatch(new Logout());
          return false;
        }
        return true;
      }),
      take(1)
    );
  }

  canLoad(): Observable<boolean> {
    return this.store.pipe(
      select(selectIsAuthenticated),
      map(isValidToken => {
        if (!isValidToken) {
          this.store.dispatch(new Logout());
          return false;
        }
        return true;
      }),
      take(1)
    );
  }
}