qcloud_cos::CosAPI InitCosAPI() {
    uint64_t appid = 12500000000;
    std::string region = "ap-guangzhou";// Region of the bucket, see https://www.tencentcloud.com/document/product/436/62?from_cn_redirect=1
    std::string secret_id = "************************************"; // User's SecretId. It is recommended to use sub-account keys, with authorization following the least privilege principle to mitigate usage risks. For information on how to obtain sub-account keys, see https://www.tencentcloud.com/document/product/598/37140?from_cn_redirect=1
    std::string secret_key = "************************************"; // User's SecretKey. It is recommended to use sub-account keys, with authorization following the least privilege principle to mitigate usage risks. For information on how to obtain sub-account keys, see 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() {
    // You need to have obtained the temporary key results: tmp_secret_id, tmp_secret_key,
    // For generating temporary keys, see 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::SelectObjectContent(const SelectObjectContentReq& req, SelectObjectContentResp* resp)

void SelectObjectContentDemo(qcloud_cos::CosAPI& cos) {
    std::string object_name = "test.csv.gz";
    int input_file_type = CSV;                // The format of the object to be searched is CSV or JSON
    int input_compress_type = COMPRESS_GZIP;  // Compression type: COMPRESS_NONE, COMPRESS_GZIP, COMPRESS_BZIP2
    int out_file_type = CSV;                  // The output format is CSV or JSON

    qcloud_cos::SelectObjectContentReq req(bucket_name, object_name, input_file_type, input_compress_type, out_file_type);
    req.SetSqlExpression("Select * from COSObject");
    qcloud_cos::SelectObjectContentResp resp;
    qcloud_cos::CosResult result = cos.SelectObjectContent(req, &resp);

    std::cout << "=====================IsObjectExist=======================" << std::endl;
    PrintResult(result, resp);
    // Supports printing the final results to the terminal or writing to a local file.
    // resp.WriteResultToLocalFile("file_name");
    resp.PrintResult();
    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;
    }
}