How to implement this Guard correctly?

Question

Angular

Help implement this guard. The problem is that always false is returned. (getUser makes a request to the test api and gets the object).

canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
    return this.auth.getUser().subscribe( u => {
      this.person = u;
      if (this.person.err == 0 ) {
        return true;
      } else {
        return false;
      }
    });
  }

Answer 1

canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
  return this.auth.getUser().pipe( map(user => user.err == 0));
}