একটি CDN থেকে বান্ডিল করা Firestore সামগ্রী পরিবেশন করুন

exports.createBundle = functions.https.onRequest(async (request, response) => {
  // Query the 50 latest stories
  const latestStories = await db.collection('stories')
    .orderBy('timestamp', 'desc')
    .limit(50)
    .get();

  // Build the bundle from the query results
  const bundleBuffer = db.bundle('latest-stories')
    .add('latest-stories-query', latestStories)
    .build();

  // Cache the response for up to 5 minutes;
  // see https://firebase.google.com/docs/hosting/manage-cache
  response.set('Cache-Control', 'public, max-age=300, s-maxage=600');

  response.end(bundleBuffer);
});
      

package com.example;

import com.google.auth.oauth2.GoogleCredentials;
import com.google.cloud.firestore.Firestore;
import com.google.cloud.firestore.FirestoreBundle;
import com.google.cloud.firestore.Query.Direction;
import com.google.cloud.firestore.QuerySnapshot;
import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;
import com.google.firebase.cloud.FirestoreClient;
import java.io.BufferedWriter;
import java.io.IOException;

public class ExampleFunction implements HttpFunction {

  public static FirebaseApp initializeFirebase() throws IOException {
    if (FirebaseApp.getApps().isEmpty()) {
      FirebaseOptions options = FirebaseOptions.builder()
          .setCredentials(GoogleCredentials.getApplicationDefault())
          .setProjectId("YOUR-PROJECT-ID")
          .build();

      FirebaseApp.initializeApp(options);
    }

    return FirebaseApp.getInstance();
  }

  @Override
  public void service(HttpRequest request, HttpResponse response) throws Exception {
    // Get a Firestore instance
    FirebaseApp app = initializeFirebase();
    Firestore db = FirestoreClient.getFirestore(app);

    // Query the 50 latest stories
    QuerySnapshot latestStories = db.collection("stories")
        .orderBy("timestamp", Direction.DESCENDING)
        .limit(50)
        .get()
        .get();

    // Build the bundle from the query results
    FirestoreBundle bundle = db.bundleBuilder("latest-stores")
        .add("latest-stories-query", latestStories)
        .build();

    // Cache the response for up to 5 minutes
    // see https://firebase.google.com/docs/hosting/manage-cache
    response.appendHeader("Cache-Control", "public, max-age=300, s-maxage=600");

    // Write the bundle to the HTTP response
    BufferedWriter writer = response.getWriter();
    writer.write(new String(bundle.toByteBuffer().array()));
  }
}