uploadAsync not working about yii2-aws-s3 HOT 3 CLOSED

            // checking valid local path
            if (!file_exists($local_file_url)) array("error"=>"invlid_path");

            // TODO: Bucket configuration as per environment
            $bucket = '';

            // image upload settings
            $concurrency = 5;
            $minPartSize = 1073741824; // 1024 MB

            // image upload aws
            // Yii::$app->get(S3_BUCKET)->multipartUpload(
                // "$desired_aws_url",
                // "$local_file_url",
                // $concurrency,
                // $minPartSize
            // );


            $promise = Yii::$app->get(S3_BUCKET)->uploadAsync(
                "$desired_aws_url",
                "$local_file_url",
                $concurrency,
                $minPartSize
            );



            // block until the result is ready
            $promise->wait();
            print_r($promise); exit;


        // Getting image absolute path from aws 
        $aws_url = Yii::$app->get(S3_BUCKET)->getUrl("$desired_aws_url");

        return $aws_url;