In a versioned Object Storage Service (OSS) bucket, the storage classes of different versions of an object can be different. By default, when you call the RestoreObject operation to restore an object, the current version of the object is restored. You can specify a version ID in the request to restore a specific version of an object.
Usage notes
In this topic, the public endpoint of the China (Hangzhou) region is used. If you want to access OSS from other Alibaba Cloud services in the same region as OSS, use an internal endpoint. For more information about OSS regions and endpoints, see Regions, endpoints and open ports.
In this topic, an OSSClient instance is created by using an OSS endpoint. If you want to create an OSSClient instance by using custom domain names or Security Token Service (STS), see Create an OSSClient instance.
To restore an object, you must have the
oss:RestoreObject
permission. For more information, see Attach a custom policy to a RAM user.
Examples
The following sample code provides an example on how to restore an object:
<?php
if (is_file(__DIR__ . '/../autoload.php')) {
require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
require_once __DIR__ . '/../vendor/autoload.php';
}
use OSS\Credentials\EnvironmentVariableCredentialsProvider;
use OSS\OssClient;
use OSS\CoreOssException;
use OSS\Model\DeleteObjectInfo;
// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
$provider = new EnvironmentVariableCredentialsProvider();
// In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint.
$endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
$bucket= "<yourBucketName>";
// Specify the full path of the object. Do not include the bucket name in the full path. Example: example/test.txt.
$object= "<yourObjectName>";
$versionId = "<yourObjectVersionId>";
$config = array(
"provider" => $provider,
"endpoint" => $endpoint,
"signatureVersion" => OssClient::OSS_SIGNATURE_VERSION_V4,
"region"=> "cn-hangzhou"
);
$ossClient = new OssClient($config);
try{
// Restore a specific version of the object.
$result = $ossClient->restoreObject($bucket, $object, array(OssClient::OSS_VERSION_ID => $versionId));
} catch(OssException $e) {
printf(__FUNCTION__ . ": FAILED\n");
printf($e->getMessage() . "\n");
return;
}
print(__FUNCTION__ . ": OK" . "\n");
For more information about how to restore an object, see RestoreObject.