获取存储桶的元数据并显示当前 rpo 设置

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如需查看包含此代码示例的详细文档，请参阅以下内容：

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代码示例

C++

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

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

  std::cout << "RPO is " << metadata->rpo() << " for bucket "
            << metadata->name() << "\n";
}

C#

如需了解详情，请参阅 Cloud Storage C# API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。


using System;
using Google.Cloud.Storage.V1;

public class GetRpoSample
{
    public string GetRpo(string bucketName = "your-unique-bucket-name")
    {
        var storage = StorageClient.Create();
        var rpo = storage.GetBucket(bucketName).Rpo;
        Console.WriteLine($"The RPO Setting of bucket {bucketName} is {rpo}.");

        return rpo;
    }
}

Go

如需了解详情，请参阅 Cloud Storage Go API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

import (
	"context"
	"fmt"
	"io"
	"time"

	"cloud.google.com/go/storage"
)

// getRPO gets the current RPO (Recovery Point Objective) setting
// for the bucket, either "DEFAULT" or "ASYNC_TURBO".
func getRPO(w io.Writer, bucketName string) error {
	// bucketName := "bucket-name"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	ctx, cancel := context.WithTimeout(ctx, time.Second*10)
	defer cancel()

	attrs, err := client.Bucket(bucketName).Attrs(ctx)
	if err != nil {
		return fmt.Errorf("Bucket(%q).Attrs: %w", bucketName, err)
	}
	fmt.Fprintf(w, "RPO is %s for %v", attrs.RPO, bucketName)
	return nil
}

Java

如需了解详情，请参阅 Cloud Storage Java API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;

public class GetBucketRpo {
  public static void getBucketRpo(String projectId, String bucketName) {
    // 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();
    Bucket bucket = storage.get(bucketName);
    String rpo = bucket.getRpo().toString();

    System.out.println("The RPO setting of bucket " + bucketName + " is " + rpo);
  }
}

Node.js

如需了解详情，请参阅 Cloud Storage Node.js API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The name of your GCS bucket in a dual-region
// const bucketName = 'Name of a bucket, e.g. my-bucket';

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

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

async function getRPO() {
  // Gets Bucket Metadata and prints RPO value (either 'default' or 'async_turbo').
  // If RPO is undefined, the bucket is a single region bucket
  const [metadata] = await storage.bucket(bucketName).getMetadata();
  console.log(`RPO is ${metadata.rpo} for ${bucketName}.`);
}

getRPO();

PHP

如需了解详情，请参阅 Cloud Storage PHP API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

use Google\Cloud\Storage\StorageClient;

/**
 * Get the bucket's recovery point objective (RPO) setting.
 *
 * @param string $bucketName the name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 */
function get_rpo(string $bucketName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);

    printf(
        'The bucket\'s RPO value is: %s.' . PHP_EOL,
        $bucket->info()['rpo']
    );
}

Python

如需了解详情，请参阅 Cloud Storage Python API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。


from google.cloud import storage


def get_rpo(bucket_name):
    """Gets the RPO of the bucket"""
    # The ID of your GCS bucket
    # bucket_name = "my-bucket"

    storage_client = storage.Client()
    bucket = storage_client.get_bucket(bucket_name)
    rpo = bucket.rpo

    print(f"RPO for {bucket.name} is {rpo}.")

Ruby

如需了解详情，请参阅 Cloud Storage Ruby API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

def get_rpo 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

  puts "The RPO setting of bucket '#{bucket_name}' is #{bucket.rpo}."
end

后续步骤

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