A bucket serves as a container that stores objects. Objects belong to the bucket they are created in or uploaded to.

Create a bucket

Use the following code to create a bucket: 
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the OSS account information. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    std::string Endpoint = "yourEndpoint";
    std::string BucketName = "yourBucketName";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);

    /* Specify the name, storage class, and ACL of the bucket. */
    CreateBucketRequest request(BucketName, StorageClass::IA, CannedAccessControlList::PublicReadWrite);

    /* Create the bucket. */
    auto outcome = client.CreateBucket(request);
  
    if (! outcome.isucces()) {
        /* Handle exceptions. */
        std::cout << "CreateBucket fail" <<
        ",code:" << outcome.error(). Code() <<
        ",message:" << outcome.error(). Message() <<
        ",requestId:" << outcome.error(). RequestId() << std::endl;
        ShutdownSdk();
        return -1;
    }

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

For more information about the bucket naming rules, see the "Naming conventions" section in Basic concepts. You can specify the ACL and the storage class when you create a bucket, as shown in Bucket ACLs and Storage classes.

List buckets

Use the following code to list all buckets: 
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the OSS account information. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    std::string Endpoint = "yourEndpoint";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);
  
    /* List the buckets. */
    ListBucketsRequest request;
    auto outcome = client.ListBuckets(request);

    if (outcome.isSuccess()) {
        /* Display the bucket information. */
        std::cout <<" success, and bucket count is" << outcome.result(). Buckets().size() << std::endl;
        std::cout << "Bucket name is" << std::endl;
        for (auto result : outcome.result(). Buckets())
        {
            std::cout << result.Name() << std::endl;
        }
    }
    else {
        /* Handle exceptions. */
        std::cout << "ListBuckets fail" <<
        ",code:" << outcome.error(). Code() <<
        ",message:" << outcome.error(). Message() <<
        ",requestId:" << outcome.error(). RequestId() << std::endl;
        ShutdownSdk();
        return -1;
    }

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

Configure the ACL of a bucket

The following table describes the permissions included in the ACL of a bucket.

Permission Description Value
Private Only the owner or authorized users of a bucket have read and write permissions on objects in the bucket. OSS_ACL_PRIVATE
Public Read Only the owner or authorized users of a bucket have read and write permissions on objects in the bucket. Other users (including anonymous users) have only read permissions on objects in the bucket. Use caution when using this permission. OSS_ACL_PUBLIC_READ
Public All users of a bucket have read and write permissions on all objects in the bucket. Use caution when using this permission. OSS_ACL_PUBLIC_READ_WRITE

For more information about the ACL, see the "Access control" section in OSS Developer Guide.

Use the following code to configure the ACL of a bucket: 
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the OSS account information. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    std::string Endpoint = "yourEndpoint";
    std::string BucketName = "yourBucketName";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);
  
    /* Configure the ACL of the bucket. */
    SetBucketAclRequest request(BucketName, CannedAccessControlList::Private);
    auto outcome = client.SetBucketAcl(request);

    if (outcome.isSuccess()) {    
        std::cout << " setBucketAcl to private success " << std::endl;
    }
    else {
        /* Handle exceptions. */
        std::cout << "SetBucketAcl fail" <<
        ",code:" << outcome.error(). Code() <<
        ",message:" << outcome.error(). Message() <<
        ",requestId:" << outcome.error(). RequestId() << std::endl;
        ShutdownSdk();
        return -1;
    }

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

Obtain the ACL of a bucket

Use the following code to obtain the ACL of a bucket: 
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the OSS account information. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    std::string Endpoint = "yourEndpoint";
    std::string BucketName = "yourBucketName";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);
  
    /* Obtain the ACL of the bucket. */
    GetBucketAclRequest request(BucketName);
    auto outcome = client.GetBucketAcl(request);

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

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

Obtain the region of a bucket

Use the following code to obtain the region where a bucket resides: 
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the OSS account information. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    std::string Endpoint = "yourEndpoint";
    std::string BucketName = "yourBucketName";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);
  
    /* Obtain the region where the bucket resides. */
    GetBucketLocationRequest request(BucketName);
    auto outcome = client.GetBucketLocation(request);

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

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

Determine whether a bucket exists

Use the following code to determine whether the specified bucket exists: 
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the OSS account information. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    std::string Endpoint = "yourEndpoint";
    std::string BucketName = "yourBucketName";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);
  
    /* Determine whether the bucket exists. */
    auto outcome = client.DoesBucketExist(BucketName);

    if (outcome) {    
        std::cout << " The Bucket exists" << std::endl;
    }
    else {
        std::cout << "The Bucket does not exist" << std::endl;
    }

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

Delete a bucket

Before deleting a bucket, you must delete all objects in the bucket and fragments generated by multipart upload.

Note To delete the fragments that are generated from multipart upload, use ListMultipartUploads to list all fragments, and then use AbortMultipartUpload to delete the fragments.
Use the following code to delete a bucket: 
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize the OSS account information. */
    std::string AccessKeyId = "yourAccessKeyId";
    std::string AccessKeySecret = "yourAccessKeySecret";
    std::string Endpoint = "yourEndpoint";
    std::string BucketName = "yourBucketName";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);

    /* Specify the name of the bucket you want to delete. */
    DeleteBucketRequest request(BucketName);

    /* Delete the bucket. */
    auto outcome = client.DeleteBucket(request);

    if (! outcome.isSuccess()) {
        /* Handle exceptions. */
        std::cout << "DeleteBucket fail" <<
        ",code:" << outcome.error(). Code() <<
        ",message:" << outcome.error(). Message() <<
        ",requestId:" << outcome.error(). RequestId() << std::endl;
        ShutdownSdk();
        return -1;
    }

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