Get a bucket's default KMS key

Get a bucket's default KMS key.

Explore further

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

Code sample

C++

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

To authenticate to Cloud Storage, set up Application Default Credentials. For more information, see Set up authentication for client libraries. 

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

  if (!metadata->has_encryption()) {
    std::cout << "The bucket " << metadata->name()
              << " does not have a default KMS key set.\n";
    return;
  }

  std::cout << "The default KMS key for bucket " << metadata->name()
            << " is: " << metadata->encryption().default_kms_key_name << "\n";
}

What's next

To search and filter code samples for other Google Cloud products, see the Google Cloud sample browser.