Get a lifecycle policy for a bucket

View the lifecycle configuration of a Cloud Storage bucket.

Explore further

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

• Manage object lifecycles

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> updated_metadata =
      client.GetBucketMetadata(bucket_name);
  if (!updated_metadata) throw std::move(updated_metadata).status();

  if (!updated_metadata->has_lifecycle() ||
      updated_metadata->lifecycle().rule.empty()) {
    std::cout << "Bucket lifecycle management is not enabled for bucket "
              << updated_metadata->name() << ".\n";
    return;
  }
  std::cout << "Bucket lifecycle management is enabled for bucket "
            << updated_metadata->name() << ".\n";
  std::cout << "The bucket lifecycle rules are";
  for (auto const& kv : updated_metadata->lifecycle().rule) {
    std::cout << "\n " << kv.condition() << ", " << kv.action();
  }
  std::cout << "\n";
}

Rust

use google_cloud_storage::client::StorageControl;

pub async fn sample(client: &StorageControl, bucket_id: &str) -> anyhow::Result<()> {
    let bucket = client
        .get_bucket()
        .set_name(format!("projects/_/buckets/{bucket_id}"))
        .send()
        .await?;
    println!(
        "Lifecycle rules for bucket {}: {:?}",
        bucket_id, bucket.lifecycle
    );
    Ok(())
}

What's next

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