Copy an object (C++ SDK V2)

Usage notes

• Before running the example code, replace <region> with a valid region ID, such as cn-hangzhou.

• The example code obtains access credentials from environment variables.

• The CopyObject operation supports objects up to 1 GB. For larger objects, use multipart copy.

• The source bucket and the destination bucket must be in the same region.

Examples

#include <iostream>
#include "alibabacloud/oss2/ClientConfiguration.h"
#include "alibabacloud/oss2/OSSClient.h"
#include "alibabacloud/oss2/credentials/CredentialsProvider.h"

namespace oss = alibabacloud::oss2;

int main() {
    auto conf = oss::ClientConfiguration::loadDefault();
    conf.region = "<region>";
    conf.credentialsProvider = std::make_shared<oss::EnvironmentVariableCredentialsProvider>();

    oss::OSSClient client(conf);

    auto outcome = client.copyObject(
        oss::models::CopyObjectRequest()
            .setBucket("examplebucket")
            .setKey("destobject.txt")
            .setSourceBucket("examplebucket")
            .setSourceKey("sourceobject.txt"));

    if (!outcome.has_value()) {
        auto& e = outcome.error();
        std::cerr << "Failed to copy the object"
                  << ", code: " << e.getCode()
                  << ", message: " << e.getMessage()
                  << ", requestId: " << e.getRequestId() << std::endl;
        return 1;
    }

    auto& result = outcome.value();
    std::cout << "Successfully copied the object"
              << ", status: " << result.getStatusCode()
              << ", eTag: " << result.getETag() << std::endl;
    return 0;
}
          

#include <iostream>
#include "alibabacloud/oss2/ClientConfiguration.h"
#include "alibabacloud/oss2/OSSClient.h"
#include "alibabacloud/oss2/credentials/CredentialsProvider.h"

namespace oss = alibabacloud::oss2;

int main() {
    auto conf = oss::ClientConfiguration::loadDefault();
    conf.region = "<region>";
    conf.credentialsProvider = std::make_shared<oss::EnvironmentVariableCredentialsProvider>();

    oss::OSSClient client(conf);

    auto outcome = client.copyObject(
        oss::models::CopyObjectRequest()
            .setBucket("destbucket")
            .setKey("destobject.txt")
            .setSourceBucket("sourcebucket")
            .setSourceKey("sourceobject.txt"));

    if (!outcome.has_value()) {
        auto& e = outcome.error();
        std::cerr << "Failed to copy the object"
                  << ", code: " << e.getCode()
                  << ", message: " << e.getMessage()
                  << ", requestId: " << e.getRequestId() << std::endl;
        return 1;
    }

    auto& result = outcome.value();
    std::cout << "Successfully copied the object across buckets"
              << ", status: " << result.getStatusCode()
              << ", eTag: " << result.getETag() << std::endl;
    return 0;
}
          

Related documents

• For the complete sample code, see CopyObject.cpp.