Object Storage Service:Manage objects in a versioning-enabled bucket

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import java.io.ByteArrayInputStream;

public class Demo {
    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 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. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the full path of the object. Do not include the bucket name in the full path. 
        String objectName = "exampledir/object";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // In this example, a string is uploaded as an object. 
            String content = "Hello OSS";
            PutObjectResult result = ossClient.putObject(bucketName, objectName, new ByteArrayInputStream(content.getBytes()));
            // Display the version ID of the object. 
            System.out.println("result.versionid: " + result.getVersionId());
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

<?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;

// 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>";
$content = "hello world";

$config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,
    );
    $ossClient = new OssClient($config);

try {
    // Upload the object to a versioned bucket. 
    $ret = $ossClient->putObject($bucket, $object, $content);

    // Display the version ID of the object. 
    print("versionId:" .$ret[OssClient::OSS_HEADER_VERSION_ID]);
} catch (OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}

print(__FUNCTION__ . ": OK" . "\n");

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that you have configured environment variables OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  // Specify the name of the bucket. 
  bucket: 'yourbucketname'
});

async function put() {
  const result = await client.put('fileName', path.normalize('D:\\localpath\\examplefile.txt');
  console.log(result.res.headers['x-oss-version-id']); // Display the version ID of the uploaded object. 
}
put();

# -*- coding: utf-8 -*-
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider
# 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. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
# Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', 'yourBucketName')

# Upload the object. 
result = bucket.put_object('yourObjectName', 'content of object')
# Display the returned HTTP status code. 
print('http response code: {0}'.format(result.status))
# Display the version ID of the uploaded object. 
print('put object version:', result.versionid)

using System.Text;
using Aliyun.OSS;
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// 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. 
var accessKeyId = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_ID");
var accessKeySecret = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_SECRET");
// Specify the name of the bucket. Example: examplebucket. 
var bucketName = "examplebucket";
// Specify the full path of the object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. 
var objectName = "exampleobject.txt";
var objectContent = "More than just cloud.";
// Create an OSSClient instance. 
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    byte[] binaryData = Encoding.ASCII.GetBytes(objectContent);
    MemoryStream requestContent = new MemoryStream(binaryData);
    // Upload the local file. 
    var result = client.PutObject(bucketName, objectName, requestContent);
    Console.WriteLine("Put object succeeded versionid : {0}", result.VersionId);
}
catch (Exception ex)
{
    Console.WriteLine("Put object failed, {0}", ex.Message);
}

package main

import (
  "fmt"
  "net/http"
  "os"
  "strings"

  "github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func main() {
    // 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, err := oss.NewEnvironmentVariableCredentialsProvider()
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Create an OSSClient instance. 
    // Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify your actual endpoint. 
    client, err := oss.New("yourEndpoint", "", "", oss.SetCredentialsProvider(&provider))
    if err != nil {
       fmt.Println("Error:", err)
       os.Exit(-1)
  }

  // Specify the name of the bucket. 
  bucket, err := client.Bucket("yourBucketName")
  if err != nil {
    fmt.Println("Error:", err)
    os.Exit(-1)
  }

  var retHeader http.Header
  // Upload the string. Use oss.GetResponseHeader to obtain the returned header. 
  // Specify the full path of the object. Do not include the bucket name in the full path. 
  err = bucket.PutObject("yourObjectName", strings.NewReader("yourObjectValue"), oss.GetResponseHeader(&retHeader))
  if err != nil {
    fmt.Println("Error:", err)
    os.Exit(-1)
  }
  // Display the value of the x-oss-version-id header. 
  fmt.Println("x-oss-version-id:", oss.GetVersionId(retHeader))
}

#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize information about the account that is used to access OSS. */
            
    /* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    /* Specify the name of the bucket. Example: examplebucket. */
    std::string BucketName = "examplebucket";
    /* Specify the full path of the object. Do not include the bucket name in the full path of the object. Example: exampledir/exampleobject.txt. */
    std::string ObjectName = "exampledir/exampleobject.txt";

    /* Initialize resources such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    /* 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. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);
    std::shared_ptr<std::iostream> content = std::make_shared<std::stringstream>();
    *content << "test cpp sdk";
    PutObjectRequest request(BucketName, ObjectName, content);

    /* Upload the object. */
    auto outcome = client.PutObject(request);

    if (outcome.isSuccess()) {
        std::cout << "versionid:" << outcome.result().VersionId() << std::endl;
    }
    else {
        /* Handle exceptions. */
        std::cout << "PutObject fail" <<
        ",code:" << outcome.error().Code() <<
        ",message:" << outcome.error().Message() <<
        ",requestId:" << outcome.error().RequestId() << std::endl;
        return -1;
    }

    /* Release resources such as network resources. */
    ShutdownSdk();
    return 0;
}

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;

public class Demo {
    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 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. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // List the versions of all objects, including delete markers in the bucket. 
            String nextKeyMarker = null;
            String nextVersionMarker = null;
            VersionListing versionListing = null;
            do {
                ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                        .withBucketName(bucketName)
                        .withKeyMarker(nextKeyMarker)
                        .withVersionIdMarker(nextVersionMarker);

                versionListing = ossClient.listVersions(listVersionsRequest);
                for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                    System.out.println("key name: " + ossVersion.getKey());
                    System.out.println("versionid: " + ossVersion.getVersionId());
                    System.out.println("Is latest: " + ossVersion.isLatest());
                    System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
                }

                nextKeyMarker = versionListing.getNextKeyMarker();
                nextVersionMarker = versionListing.getNextVersionIdMarker();
            } while (versionListing.isTruncated());
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

<?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;

// 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();
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
$endpoint = "yourEndpoint";
// Specify the name of the bucket. Example: examplebucket. 
$bucket= "examplebucket";

$config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,
    );
    $ossClient = new OssClient($config);

try{
    $option = array(
        OssClient::OSS_KEY_MARKER => null,
        OssClient::OSS_VERSION_ID_MARKER => null
    );
    $bool = true;
    while ($bool){
        $result = $ossClient->listObjectVersions($bucket,$option);
        // Display information about the listed versions of the objects. 
        foreach ($result->getObjectVersionList() as $key => $info){
            printf("key name: {$info->getKey()}\n");
            printf("versionid: {$info->getVersionId()}\n");
            printf("Is latest: {$info->getIsLatest()}\n\n");
        }

        // Display information about the listed versions of the delete markers. 
        foreach ($result->getDeleteMarkerList() as $key => $info){
            printf("del_maker key name: {$info->getKey()}\n");
            printf("del_maker versionid: {$info->getVersionId()}\n");
            printf("del_maker Is latest: {$info->getIsLatest()}\n\n");
        }

        if($result->getIsTruncated() === 'true'){
            $option[OssClient::OSS_KEY_MARKER] = $result->getNextKeyMarker();
        $option[OssClient::OSS_VERSION_ID_MARKER] = $result->getNextVersionIdMarker();
        }else{
            $bool = false;
        }
    }
} catch(OssException $e) {
    printf($e->getMessage() . "\n");
    return;
}

const OSS = require("ali-oss");

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // 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. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  // Specify the name of the bucket. 
  bucket: 'yourbucketname'
});

// List the versions of all objects in the bucket, including delete markers. 
async function getObjectVersions() {
  let nextKeyMarker = null;
  let nextVersionMarker = null;
  let versionListing = null;
  do {
    versionListing = await client.getBucketVersions({
      keyMarker: nextKeyMarker,
      versionIdMarker: nextVersionMarker,
    });

    versionListing.objects.forEach((o) => {
      console.log(`${o.name}, ${o.versionId}`);
    });
    versionListing.deleteMarker.forEach((o) => {
      console.log(`${o.name}, ${o.versionId}`);
    });

    nextKeyMarker = versionListing.NextKeyMarker;
    nextVersionMarker = versionListing.NextVersionIdMarker;
  } while (versionListing.isTruncated);
}

getObjectVersions();

# -*- coding: utf-8 -*-
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider
# 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. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
# Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', 'yourBucketName')

# Call the list_object_versions operation to list the versions of objects in a versioning-enabled bucket. 
# List the versions of all objects, including delete markers in the bucket. 
result = bucket.list_object_versions()

# List the versions of all objects in the bucket. 
next_key_marker = None
next_versionid_marker = None
while True:
    result = bucket.list_object_versions(key_marker=next_key_marker, versionid_marker=next_versionid_marker)

    # Display the versions of the listed objects. 
    for version_info in result.versions:
        print('version_info.versionid:', version_info.versionid)
        print('version_info.key:', version_info.key)
        print('version_info.is_latest:', version_info.is_latest)

    # Display the versions of the listed delete markers. 
    for del_maker_Info in result.delete_marker:
        print('del_maker.key:', del_maker_Info.key)
        print('del_maker.versionid:', del_maker_Info.versionid)
        print('del_maker.is_latest:', del_maker_Info.is_latest)

    is_truncated = result.is_truncated

    # Check whether all versions of all objects in the bucket are listed. If the versions of all objects are incompletely listed, the list operation continues. If the versions of all objects are completely listed, the list operation stops. 
    if is_truncated:
        next_key_marker = result.next_key_marker
        next_versionid_marker = result.next_versionid_marker
    else:
        break

package main

import (
    "fmt"
    "os"
    "github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func HandleError(err error) {
    fmt.Println("Error:", err)
    os.Exit(-1)
}

func main() {
    // 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, err := oss.NewEnvironmentVariableCredentialsProvider()
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }
    // Create an OSSClient instance. 
    // Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify your actual endpoint. 
    client, err := oss.New("yourEndpoint", "", "", oss.SetCredentialsProvider(&provider))
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Specify the name of the bucket. 
    bucketName := "examplebucket"
    bucket,err := client.Bucket(bucketName)
    if err != nil {
        HandleError(err)
    }

    // List the versions of all objects including delete markers in the bucket. 
    keyMarker := oss.KeyMarker("")
    // The VersionIdMarker parameter is configured together with the KeyMarker parameter to specify the position from which the list operation starts. 
    versionIdMarker := oss.VersionIdMarker("")
    for {
        lor, err := bucket.ListObjectVersions(keyMarker,versionIdMarker)
        if err != nil {
            HandleError(err)
        }

        // Display the version IDs of the objects. 
        for _, dirName := range lor.ObjectVersions{
            fmt.Println("Versionid:",dirName.VersionId)
            fmt.Println("Key:",dirName.Key)
            fmt.Println("Is Latest",dirName.IsLatest)
        }
        // View the versions of the listed delete markers. 
         for _, marker  := range lor.ObjectDeleteMarkers {
            fmt.Println(marker.VersionId)
            fmt.Println(marker.Key)
        }
        // Check whether the required versions are listed. If the versions are incompletely listed, the list operation continues. If the versions are completely listed, the list operation stops. 
        keyMarker = oss.KeyMarker(lor.NextKeyMarker)
        versionIdMarker = oss.VersionIdMarker(lor.NextVersionIdMarker)
        if !lor.IsTruncated {
            break
        }
    }
}

<?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\OssClient;
use OSS\Core\OssException;

// 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.  
$accessKeyId = getenv("OSS_ACCESS_KEY_ID"); 
$accessKeySecret = getenv("OSS_ACCESS_KEY_SECRET");
// 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. The full path of the object cannot contain the bucket name. Example: example/test.txt. 
$object = "<yourObjectName>";
// Specify the version ID of the version you want to download. 
$versionId = "<yourObjectVersionId>";

$ossClient = new OssClient($accessKeyId, $accessKeySecret, $endpoint);

try{
    // Download the specified version of the object. 
    $content = $ossClient->getObject($bucket, $object, array(OssClient::OSS_VERSION_ID => $versionId));
    print($content);
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}

print(__FUNCTION__ . ": OK" . "\n");          

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that you have configured environment variables OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  // Specify the name of the bucket. 
  bucket: 'yourbucketname'
});

async function get() {
  // Specify the name of the object. 
  const result = await client.get('filename', {    
      // Display the version ID of the downloaded object. 
      versionId: 'versionid',
  });
  console.log(result.content);
}
get();

# -*- coding: utf-8 -*-
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider
# 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. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
# Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', 'yourBucketName')

# Download a specific version of the object. 
params = dict()
params['versionId'] = '<yourObjectVersionId>'
object_stream = bucket.get_object('<yourObjectName>', params=params)

# Read the content of the downloaded object. 
read_content = object_stream.read()
print('get object content:', read_content)
# Display the version ID of the downloaded object. 
print('get object versionid:', object_stream.versionid)

# You must call read() to read the object from the stream that is returned by get_object before you can calculate the CRC-64 checksum of the object. 
if object_stream.client_crc != object_stream.server_crc:
   print("The CRC checksum between client and server is inconsistent!")

package main

import (
  "fmt"
  "net/http"
  "os"  

  "github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func main() {
    /// 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, err := oss.NewEnvironmentVariableCredentialsProvider()
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Create an OSSClient instance. 
    // Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify your actual endpoint. 
    client, err := oss.New("yourEndpoint", "", "", oss.SetCredentialsProvider(&provider))
    if err != nil {
      fmt.Println("Error:", err)
      os.Exit(-1)
  }

  // Specify the name of the bucket. 
  bucket, err := client.Bucket("<yourBucketName>")
  if err != nil {
    fmt.Println("Error:", err)
    os.Exit(-1)
  }

  var retHeader http.Header
  // Download the version whose ID is yourObjectVersionId to the cache. 
  // Specify the full path of the object. Do not include the bucket name in the full path. 
  _, err = bucket.GetObject("youObjectName", oss.VersionId("yourObjectVersionId"), oss.GetResponseHeader(&retHeader))
  if err != nil {
    fmt.Println("Error:", err)
    os.Exit(-1)
  }
  // Display the value of x-oss-version-id. 
  fmt.Println("x-oss-version-id:",  oss.GetVersionId(retHeader))
}

#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize information about the account that is used to access OSS. */
            
    /* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    /* Specify the name of the bucket. Example: examplebucket. */
    std::string BucketName = "examplebucket";
    /* Specify the full path of the object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. */
    std::string ObjectName = "exampledir/exampleobject.txt";

    /* Initialize resources such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    /* 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. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);

    /* Download the object into memory. */
    GetObjectRequest request(BucketName, ObjectName);
    request.setVersionId("yourObjectVersionId");
    auto outcome = client.GetObject(request);
    if (outcome.isSuccess()) {
        std::cout << "getObjectToBuffer" << " success, Content-Length:" << outcome.result().Metadata().ContentLength() << std::endl;
        /* Read the content of the downloaded object. */
        std::string content;
        *(outcome.result().Content()) >> content;
        std::cout << "getObjectToBuffer" << "content:" << content << std::endl;
        /* Display the version ID of the downloaded object. */
        std::cout << "versionid:" << outcome.result().VersionId() << std::endl;
    }
    else {
            /* Handle exceptions. */
            std::cout << "getObjectToBuffer fail" <<
        ",code:" << outcome.error().Code() <<
        ",message:" << outcome.error().Message() <<
        ",requestId:" << outcome.error().RequestId() << std::endl;
        return -1;
    }

    /* Release resources such as network resources. */
    ShutdownSdk();
    return 0;
}

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;

public class Demo {
    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 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. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the full path of the object. Do not include the bucket name in the full path. 
        String objectName = "exampledir/object";
        String versionId  = "CAEQMxiBgICAof2D0BYiIDJhMGE3N2M1YTI1NDQzOGY5NTkyNTI3MGYyMzJm****";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // Delete the specified version of the object. 
            ossClient.deleteVersion(bucketName, objectName , versionId);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

<?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;

// 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,
    );
    $ossClient = new OssClient($config);

try{
    // Delete the specified version of the object. 
    $ossClient->deleteObject($bucket, $object, array(OssClient::OSS_VERSION_ID => $versionId));
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}

print(__FUNCTION__ . ": OK" . "\n");        

const OSS = require("ali-oss");

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // 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. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  // Specify the name of the bucket. 
  bucket: 'yourbucketname'
});

// Specify the version ID of the object. 
const versionId = "versionId";
// Specify the object. 
const objectName = "exampleobject.txt";
async function deleteVersionObject() {
  const result = await client.delete(objectName, {
    versionId,
  });
  console.log(result);
}

deleteVersionObject();

# -*- coding: utf-8 -*-
import os
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider
# 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. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
# Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', 'yourBucketName')
# Specify the full path of the object. Do not include the bucket name in the full path. Example: example/test.txt. 
object_name = 'yourObjectName'

# Specify the version ID of the object or delete marker that you want to delete. 
params = dict()
params['versionId'] = 'yourObjectVersionIdOrDeleteMarkerVersionId'

# Delete the specific version of the object or delete marker. 
result = bucket.delete_object(object_name, params=params)
print("delete object name: ", object_name)
# If the version ID of an object is specified in the request, the value of the delete_marker header in the response is None and the value of the versionId header in the response is the version ID specified in the request. 
# If the version ID of a delete marker is specified in the request, the value of the delete_marker header in the response is True and the value of the versionId header in the response is the version ID specified in the request. 
if result.delete_marker:
    print("delete del-marker versionid: ",result.versionid)
else:
    print("delete object versionid:", result.versionid)

using Aliyun.OSS;
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// 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. 
var accessKeyId = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_ID");
var accessKeySecret = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_SECRET");
// Specify the name of the bucket. Example: examplebucket. 
var bucketName = "examplebucket";
// Specify the full path of the object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. 
var objectName = "exampledir/exampleobject.txt";
// Specify the version ID of the object or the delete marker. 
var versionid = "yourObjectVersionidOrDelMarkerVersionid";
// Create an OSSClient instance. 
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // Specify the version ID of the object or the delete marker that you want to delete. 
    var request = new DeleteObjectRequest(bucketName, objectName)
    {
        VersionId = versionid
    };
    client.DeleteObject(request);
    Console.WriteLine("Delete object succeeded");
}
catch (Exception ex)
{
    Console.WriteLine("Delete object failed. {0}", ex.Message);
}

package main

import (
  "fmt"
  "os"

  "github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func main() {
    /// 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, err := oss.NewEnvironmentVariableCredentialsProvider()
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Create an OSSClient instance. 
    // Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify your actual endpoint. 
    client, err := oss.New("yourEndpoint", "", "", oss.SetCredentialsProvider(&provider))
    if err != nil {
       fmt.Println("Error:", err)
       os.Exit(-1)
  }

  // Specify the name of the bucket. 
  bucket, err := client.Bucket("yourBucketName")
  if err != nil {
    fmt.Println("Error:", err)
    os.Exit(-1)
  }
  // Specify the full path of the object. Do not include the bucket name in the full path. 
  // Set yourObjectVersionId to the version ID of the object. If this parameter is specified, the object with the specified version ID is permanently deleted. 
  err = bucket.DeleteObject("youObjectName", oss.VersionId("yourObjectVersionId"))
  if err != nil {
    fmt.Println("Error:", err)
    os.Exit(-1)
  }
}

#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize information about the account that is used to access OSS. */
            
    /* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    /* Specify the name of the bucket. Example: examplebucket. */
    std::string BucketName = "examplebucket";
    /* Specify the full path of the object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. */
    std::string ObjectName = "exampledir/exampleobject.txt";

    /* Initialize resources such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    /* 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. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);

    /* Delete the object with the specified version ID or the object whose current version is a delete marker with the specified version ID. */
    auto outcome = client.DeleteObject(DeleteObjectRequest(BucketName, ObjectName, "yourObjectVersionIdOrDeleteMarkerVersionId"));
    /* If the version ID of an object is specified in the request, the value of the delete_marker header in the response is None and the value of the versionId header in the response is the version ID specified in the request. */
    /* If the version ID of a delete marker is specified in the request, the value of the delete_marker header in the response is True and the value of the versionId header in the response is the version ID specified in the request. */
    if (!outcome.isSuccess()) {
        /* Handle exceptions. */
        std::cout << "DeleteObject fail" <<
        ",code:" << outcome.error().Code() <<
        ",message:" << outcome.error().Message() <<
        ",requestId:" << outcome.error().RequestId() << std::endl;
        return -1;
    }

    /* Release resources such as network resources. */
    ShutdownSdk();
    return 0;
}

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;

public class Demo {
    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 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. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the source bucket. 
        String sourceBucketName = "srcexamplebucket";
        // Specify the full path of the source object. Do not include the bucket name in the full path. 
        String sourceObjectName = "srcexampleobject.txt";
        // Specify the name of the destination bucket. The destination bucket must be located in the same region as the source bucket. 
        String destinationBucketName = "desexamplebucket";
        // Specify the full path of the destination object. Do not include the bucket name in the full path. 
        String destinationObjectName = "desexampleobject.txt";
        String versionId  = "CAEQMxiBgICAof2D0BYiIDJhMGE3N2M1YTI1NDQzOGY5NTkyNTI3MGYyMzJm****";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            CopyObjectRequest copyObjectRequest = new CopyObjectRequest(sourceBucketName, sourceObjectName, destinationBucketName, destinationObjectName);
            copyObjectRequest.setSourceVersionId(versionId);
            CopyObjectResult copyObjectResult = ossClient.copyObject(copyObjectRequest);
            System.out.println("ETag: " + copyObjectResult.getETag() + " LastModified: " + copyObjectResult.getLastModified());
            System.out.println("dest object versionid: " + copyObjectResult.getVersionId());
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

<?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;

// 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 China (Hangzhou) region is used as the endpoint. 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>";
$to_bucket = $bucket;
$to_object = $object . '.copy';

$config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,
    );
    $ossClient = new OssClient($config);

try{
    // Copy the specified version of the object. 
    $ret = $ossClient->copyObject($bucket, $object, $to_bucket, $to_object, array(OssClient::OSS_VERSION_ID => $versionId));
    print("versionId:" .$ret['x-oss-version-id']);
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}

print(__FUNCTION__ . ": OK" . "\n");    
            

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that you have configured environment variables OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  // Specify the name of the bucket. 
  bucket: 'yourbucketname'
});

// Specify the version ID of the source object. 
const versionId = 'versionId';
// Specify the source object to copy. 
const srcObject = 'srcObject.txt';
// Specify the source bucket. 
const srcBucket = 'srcBucket;
// Specify the destination object. 
const targetObject = 'targetObject.txt';
async function Copy() {
  try {
    const result = await client.copy(targetObject, srcObject, srcBucket, {
      meta: {
        versionId: versionId
      }
    });

    console.log(result);
  } catch (error) {
    console.error(error);
  }
}

Copy()

# -*- coding: utf-8 -*-
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider

# 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. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
# Specify the name of the source bucket. Example: srcexamplebucket. 
src_bucket_name = 'srcexamplebucket'
# Specify the name of the destination bucket. The destination bucket must be in the same region as the source bucket. Example: destexamplebucket. 
# If you copy an object within a bucket, make sure that you specify the same bucket name for the source and destination buckets. 
dest_bucket_name = 'destexamplebucket'
# Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', dest_bucket_name)

# Specify the full path of the source object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. 
src_object_name = 'srcexampledir/exampleobject.txt'
# Specify the full path of the destination object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. 
dest_object_name = 'destexampledir/exampleobject.txt'
# Specify the version ID of the object. 
versionId = 'CAEQMxiBgICAof2D0BYiIDJhMGE3N2M1YTI1NDQzOGY5NTkyNTI3MGYyMzJm****'

# Copy the specified version of the source object. 
params = dict()
params['versionId'] = versionId

# Copy the source object from the source bucket to the destination bucket. 
result = bucket.copy_object(src_bucket_name, src_object_name, dest_object_name, params=params)
# Display the response. If the returned value is 200, the source object is copied to the destination bucket. 
print('result.status:', result.status)

using Aliyun.OSS;
using Aliyun.OSS.Common;
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// 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. 
var accessKeyId = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_ID");
var accessKeySecret = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_SECRET");
// Specify the name of the source bucket. 
var sourceBucket = "yourSourceBucketName";
// Specify the full path of the source object. Do not include the bucket name in the full path. 
var sourceObject = "yourSourceObjectName";
// Specify the name of the destination bucket. The destination bucket must be located in the same region as the source bucket. 
var targetBucket = "yourDestBucketName";
// Specify the full path of the destination object. Do not include the bucket name in the full path. 
var targetObject = "yourDestObjectName";
// Specify the version ID of the source object. 
var versionid = "yourArchiveObjectVersionid";
// Create an OSSClient instance. 
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    var metadata = new ObjectMetadata();
    metadata.AddHeader("mk1", "mv1");
    metadata.AddHeader("mk2", "mv2");
    var req = new CopyObjectRequest(sourceBucket, sourceObject, targetBucket, targetObject)
    {
        // If the value of NewObjectMetadata is null, the COPY mode is used and the metadata of the source object is copied to the destination object. If the value of NewObjectMetadata is not null, the REPLACE mode is used and the metadata of the source object overwrites the metadata of the destination object. 
        NewObjectMetadata = metadata, 
        // Specify the version ID of the object. 
        SourceVersionId = versionid
    };
    // Copy the object. 
    var result = client.CopyObject(req);
    Console.WriteLine("Copy object succeeded, vesionid:{0}", result.VersionId);
}
catch (OssException ex)
{
    Console.WriteLine("Failed with error code: {0}; Error info: {1}. \nRequestID: {2} \tHostID: {3}",
        ex.ErrorCode, ex.Message, ex.RequestId, ex.HostId);
}
catch (Exception ex)
{
    Console.WriteLine("Failed with error info: {0}", ex.Message);
}

#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize information about the account that is used to access OSS. */
            
    /* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
    /* Specify the name of the source bucket. Example: srcexamplebucket. */
    std::string SourceBucketName = "srcexamplebucket";
    /* Specify the name of the destination bucket. The destination bucket must be located in the same region as the source bucket. Example: destbucket. */
    std::string CopyBucketName = "destbucket";
    /* Specify the full path of the source object. Do not include the bucket name in the full path. Example: srcdir/scrobject.txt. */
    std::string SourceObjectName = "srcdir/scrobject.txt";
    /* Specify the full path of the destination object. Do not include the bucket name in the full path. Example: destdir/destobject.txt. */
    std::string CopyObjectName = "destdir/destobject.txt";


    /* Initialize resources, such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    /* 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. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);

    CopyObjectRequest request(CopyBucketName, CopyObjectName);
    request.setCopySource(SourceBucketName, SourceObjectName);
    /* Specify the version ID of the source object. */
    request.setVersionId("yourSourceObjectVersionId");

    /* Copy the specified version of the source object. */
    auto outcome = client.CopyObject(request);

    if (outcome.isSuccess()) {
        std::cout << "versionid:" << outcome.result().VersionId() << std::endl;
    }
    else {
        /* Handle exceptions. */
        std::cout << "CopyObject fail" <<
        ",code:" << outcome.error().Code() <<
        ",message:" << outcome.error().Message() <<
        ",requestId:" << outcome.error().RequestId() << std::endl;
        return -1;
    }

    /* Release resources, such as network resources. */
    ShutdownSdk();
    return 0;
}