Enable a default event-based hold

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Provides an example of how to enable a default event-based hold.

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For detailed documentation that includes this code sample, see the following:

Code sample


For more information, see the Cloud Storage C++ API reference documentation.

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name) {
  StatusOr<gcs::BucketMetadata> original =
  if (!original) throw std::move(original).status();

  StatusOr<gcs::BucketMetadata> patched = client.PatchBucket(
  if (!patched) throw std::move(patched).status();

  std::cout << "The default event-based hold for objects in bucket "
            << bucket_name << " is "
            << (patched->default_event_based_hold() ? "enabled" : "disabled")
            << "\n";


For more information, see the Cloud Storage C# API reference documentation.

using Google.Apis.Storage.v1.Data;
using Google.Cloud.Storage.V1;
using System;

public class EnableBucketDefaultEventBasedHoldSample
    public Bucket EnableBucketDefaultEventBasedHold(string bucketName = "your-unique-bucket-name")
        var storage = StorageClient.Create();
        var bucket = storage.GetBucket(bucketName);
        bucket.DefaultEventBasedHold = true;
        bucket = storage.UpdateBucket(bucket);
        Console.WriteLine($"Default event-based hold was enabled for {bucketName}");
        return bucket;


For more information, see the Cloud Storage Go API reference documentation.

ctx := context.Background()

bucket := c.Bucket(bucketName)
bucketAttrsToUpdate := storage.BucketAttrsToUpdate{
	DefaultEventBasedHold: true,
ctx, cancel := context.WithTimeout(ctx, time.Second*10)
defer cancel()
if _, err := bucket.Update(ctx, bucketAttrsToUpdate); err != nil {
	return err


For more information, see the Cloud Storage Java API reference documentation.

import com.google.cloud.storage.BucketInfo;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageException;
import com.google.cloud.storage.StorageOptions;

public class EnableDefaultEventBasedHold {
  public static void enableDefaultEventBasedHold(String projectId, String bucketName)
      throws StorageException {
    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of your GCS bucket
    // String bucketName = "your-unique-bucket-name";

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();

    System.out.println("Default event-based hold was enabled for " + bucketName);


For more information, see the Cloud Storage Node.js API reference documentation.

 * TODO(developer): Uncomment the following lines before running the sample.
// The ID of your GCS bucket
// const bucketName = 'your-unique-bucket-name';

// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');

// Creates a client
const storage = new Storage();

async function enableDefaultEventBasedHold() {
  // Enables a default event-based hold for the bucket.
  await storage.bucket(bucketName).setMetadata({
    defaultEventBasedHold: true,

  console.log(`Default event-based hold was enabled for ${bucketName}.`);



For more information, see the Cloud Storage PHP API reference documentation.

use Google\Cloud\Storage\StorageClient;

 * Enables a default event-based hold for a bucket.
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
function enable_default_event_based_hold(string $bucketName): void
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $bucket->update(['defaultEventBasedHold' => true]);
    printf('Default event-based hold was enabled for %s' . PHP_EOL, $bucketName);


For more information, see the Cloud Storage Python API reference documentation.

from google.cloud import storage

def enable_default_event_based_hold(bucket_name):
    """Enables the default event based hold on a given bucket"""
    # bucket_name = "my-bucket"

    storage_client = storage.Client()

    bucket = storage_client.bucket(bucket_name)
    bucket.default_event_based_hold = True

    print(f"Default event based hold was enabled for {bucket_name}")


For more information, see the Cloud Storage Ruby API reference documentation.

def enable_default_event_based_hold bucket_name:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  bucket  = storage.bucket bucket_name

  bucket.update do |b|
    b.default_event_based_hold = true

  puts "Default event-based hold was enabled for #{bucket_name}."

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