This topic describes how to upload a file from memory or a local disk to OSS.

Upload from memory

Use the following code to upload a file from memory to OSS:
#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";
    std::string ObjectName = "yourObjectName";

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

    ClientConfiguration conf;
    OssClient client(Endpoint, AccessKeyId, AccessKeySecret, conf);
    std::shared_ptr<std::iostream> content = std::make_shared<std::stringstream>();
    *content << "Thank you for using Aliyun Object Storage Service!" ;
    PutObjectRequest request(BucketName, ObjectName, content);

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

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

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

Local file upload

Use the following code to upload a local file to OSS:
#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";
    std::string ObjectName = "yourObjectName";

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

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

    /* Upload the file. */
    auto outcome = client.PutObject(BucketName, ObjectName,"yourLocalFilename");

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

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