Angular 4 Firebase show user information -


i want query 1 object firebase meets uid of logged in user. this.

fetchuserdata() {     return this.authstate.subscribe(authdata => {         this.db.list(`/users/${authdata.uid}`)      }); }

in nav-bar component expecting receive user object database.

user:firebaseobjectobservable<user>;  this.user = authservice.fetchuserdata();

so question now? async pipe not working. map not working.

in constructor of service.

afauth.auth.onauthstatechanged(function(user) {     if (user) {             //grab user uid.     } else {         console.log('meh');     } });

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