Upgrading to AngularFire 5.0

Question

I\'m using ionic 3 with firebase.

Until now I use angularfire 4.0 and the following code gave me an observable for the data from firebase:

  obsToData: F         


        

Answer 1

you need to use valueChanges() to get the Observable from the AngularFireDatabase Object reference.

obsRef: AngularFireObject<any>;
obsToData: Observable<any>;

  constructor(public nav: NavController, public shared: SharedProvider,
              public DB: AngularFireDatabase) {

              this.obsRef = DB.object('/myData');//reference
              this.obsToData = this.obsRef.valueChanges();//Observable
  }

EDIT to get data and save it,subscribe like any observable

  this.obsToData.subscribe(data=>{
       console.log(data);
  },error=>{
       console.log(error);
  })