Angular2 APP_INITIALIZER not consistent

Question

I am using APP_INITIALIZER like it is recommended in this answer, with my service returning a promise, but it doesn\'t always wait for it to resolve and I can see my compone

Answer 1

I think the problem is caused because you subscribe to the observable. This should work

@Injectable()
export class UserService {

    public user: User;
    constructor(private http: Http) { }

    getUser(): Promise {
        console.log('get user called');
        return observable= this.http.get('/auth/getuser', { headers: getHeaders() })
            .map(extractData)
            .do(user => {
                this.user = user;
                console.log(this.user)
             })
            .toPromise();
    }
}

I'm not sure if toPromise() is necessary. I'd expect it to work with Observable as well.