Example of building carousel on AoG v2 with Firestore

index.ts

const admin = require('firebase-admin');
admin.initializeApp({
      projectId: "XXXXXX"
    }
);

const db = admin.firestore();

async function buildItemsCarousel() {
  let carouselItems = {};
  await getItems().then(function (querySnapshot) {
    querySnapshot.forEach((doc, index) => {
      let item = doc.data();
      console.log("item: " + item.toString() + " index: " + index);
      let itemDetails = {
        synonyms: synonymMap[index],
        title: item.name,
        // description: item.description,
        image: new Image({
          url: item.photo_url,
          alt: item.photo_alt,
        }),
      };
      carouselItems[doc.id] = itemDetails;
    });
  });
  return new Carousel({
    items: carouselItems
  });
}

async function getItems() {
    const itemsRef = db.collection("items");
    return itemsRef.where("enabled", "==", true).get();
  }