问在不运行应用程序的情况下，Firestore数据库的读取量正在增加

EN

 export class CatService {
 lastVisibleCat: any;
 cats = [];
 fecha = new Date().setHours(23, 59, 5, 9);
 todaysDate = new Date(this.fecha);


   constructor(public afs: AngularFirestore) {
  }

getCats() {
const reference = this.afs.collection('Cats');
const query1 = reference.ref.where('timeStampEndDate', '>=', 
this.todaysDate);
return query1.get().then(snapShot => {
  snapShot.forEach(cat => {
    this.cats.push({ ...cat.data(), id: cat.id });
  });
  return this.cats;
});
}

  }