How to return observable from subscribe

Question

I\'m trying to return an observable when I get a certain value in a subscriber, but I fail miserably.

This is the code:

canActivate(route: Activated         


        

Answer 1

We can convert the Observable object to promise using toPromise method. so the code can be implemented as followed:

canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot):Promise {
        // get route to be activated
        this.routeToActivate = route.routeConfig.path;

        // get user access levels        
        return this._firebase.isUserAdmin
            .map(user => {
                return (user.access_level === 'admin');
            }).toPromise();
    }