Url api JSON object equal to firebase

@hatrek wrote:

hello i try call object from api json and if equal to firebase json display

ionViewWillEnter(){
    this.http.get( this.url )
    .map(res => res.json())
    .subscribe(data => {
      this.items = [];
      // we've got back the raw data, now generate the core schedule data
      // and save the data for later reference
     //this.data = data;
      this.items.push(data);


    });
    this.postSubscription = this.db.list('/posts',{
    query: {
      orderByChild: 'country',
      equalTo: this.items

    }

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