qcloud_cos::CosAPI InitCosAPI() {
    uint64_t appid = 12500000000;
    std::string region = "ap-guangzhou";// bucket 的地域，请参见 https://www.tencentcloud.com/document/product/436/62?from_cn_redirect=1
    std::string secret_id = "************************************"; //用户的 SecretId，建议使用子账号密钥，授权遵循最小权限指引，降低使用风险。子账号密钥获取可参见 https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1
    std::string secret_key = "************************************"; //用户的 SecretKey，建议使用子账号密钥，授权遵循最小权限指引，降低使用风险。子账号密钥获取可参见 https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1
        
    qcloud_cos::CosConfig config(appid, secret_id, secret_key, region);
    qcloud_cos::CosAPI cos_tmp(config);
    return cos_tmp;
}

qcloud_cos::CosAPI InitCosAPI() {
    // 需要已经获取到临时密钥的结果：tmp_secret_id、tmp_secret_key、
    // 临时密钥的生成参见 https://www.tencentcloud.com/document/product/436/14048?from_cn_redirect=1#cos-sts-sdk
    uint64_t appid = 12500000000;
    std::string region = "ap-guangzhou";
    std::string tmp_secret_id = "************************************";
    std::string tmp_secret_key = "************************************";
    std::string tmp_token = "token";
    
    qcloud_cos::CosConfig config(appid, tmp_secret_id, tmp_secret_key, region);
    config.SetTmpToken(tmp_token);
    qcloud_cos::CosAPI cos_tmp(config);
    return cos_tmp;
}

CosResult CosAPI::HeadObject(const HeadObjectReq& req, HeadObjectResp* resp)

void HeadObjectDemo(qcloud_cos::CosAPI& cos) {
    std::string object_name = "test.txt";
    qcloud_cos::HeadObjectReq req(bucket_name, object_name);
    qcloud_cos::HeadObjectResp resp;
    qcloud_cos::CosResult result = cos.HeadObject(req, &resp);

    std::cout << "===================HeadObjectResponse=====================" << std::endl;
    std::map<std::string, std::string> cos_metas = resp.GetXCosMetas();  // 获取自定义的元数据map
    std::string cos_meta = resp.GetXCosMeta("x-cos-meta-*");             // 获取指定自定义的元数据
    std::string restore = resp.GetXCosRestore();                         // 获得 archive 类型对象的当前恢复状态
    std::string sse = resp.GetXCosServerSideEncryption();                // Server端加密使用的算法
    PrintResult(result, resp);
    std::cout << "==========================================================" << std::endl;
}

void PrintResult(const qcloud_cos::CosResult& result, const qcloud_cos::BaseResp& resp) {
    if (result.IsSucc()) {
        std::cout << "Request Succ." << std::endl;
        std::cout << resp.DebugString() << std::endl;
    } else {
        std::cout << "ErrorMsg=" << result.GetErrorMsg() << std::endl;
        std::cout << "HttpStatus=" << result.GetHttpStatus() << std::endl;
        std::cout << "ErrorCode=" << result.GetErrorCode() << std::endl;
        std::cout << "ErrorMsg=" << result.GetErrorMsg() << std::endl;
        std::cout << "ResourceAddr=" << result.GetResourceAddr() << std::endl;
        std::cout << "XCosRequestId=" << result.GetXCosRequestId() << std::endl;
        std::cout << "XCosTraceId=" << result.GetXCosTraceId() << std::endl;
    }
}