Delete object tags (C++ SDK) - Object Storage Service - Alibaba Cloud Documentation Center

This topic describes how to delete object tags.

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 and endpoints.
In this topic, an OSSClient instance is created by using an OSS endpoint. If you want to create an OSSClient by using custom domain names or Security Token Service (STS), see Create an OSSClient instance.
To delete the tags of an object, you must have the oss:DeleteObjectTagging permission. For more information, see Attach a custom policy to a RAM user.

Sample code

The following sample code provides an example of how to delete object tags:

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

int main(void)
{
    /* Initialize OSS account information. */
            
    /* Set yourEndpoint to the endpoint of the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    /* Set yourRegion to the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the region to cn-hangzhou. */
    std::string Region = "yourRegion";
    /* Specify the bucket name, for example, examplebucket. */
    std::string BucketName = "examplebucket";
    /* Specify the full path of the object. The full path cannot contain the bucket name. For example, exampledir/exampleobject.txt. */
    std::string ObjectName = "exampledir/exampleobject.txt";

    /* Initialize network resources. */
    InitializeSdk();
    
    ClientConfiguration conf;
    conf.signatureVersion = SignatureVersionType::V4;
    /* Obtain access credentials from environment variables. Before you run this sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);
    client.SetRegion(Region);


    /* Delete the object tags. */
    auto delTaggingOutcome = client.DeleteObjectTagging(DeleteObjectTaggingRequest(BucketName, ObjectName));

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

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

References

For the complete sample code for deleting object tags, see GitHub.
For more information about the API operation for deleting object tags, see DeleteObjectTagging.