loadPeople() {

    return new Promise(resolve => {

      this.dataProvider.getProducts().subscribe((products) => {
        this.start;
        this.products = products;
        this.AKey = products.pop().$key;

        console.log(products);
        for(let person of products) {
          this.people.push(person);
        }

        resolve(true);

      });

    });

  }

    doInfinite(infiniteScroll:any) {
     console.log('doInfinite, start is currently '+this.start);
     this.start+=50;

     this.loadPeople().then(()=>{
       infiniteScroll.complete();
     });

  }

}