Dropbox api文件下载并上传到s3

Question

我尝试使用v2 api从dropbox下载文件并将其上传到amazon s3

在这里下载文件是我做的：

$headers= array(
                        'Content-Type: ',
                        "Authorization: Bearer EkOrS5mbVAwA....",
                        "Dropbox-API-Arg: {\"path\": \"/clients/erbrecht, kenneth/2nd dispute erbrecht.docx\"}");
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, 'https://content.dropboxapi.com/2/files/download');
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_POST, 1);
        //curl_setopt($ch, CURLOPT_POSTFIELDS,json_encode($data));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response  = curl_exec($ch);
        curl_close($ch);

以上代码在＆＃34; application / octet-stream＆＃34;中返回响应我假设，所以我的第一个问题是将此流转换为文件并将其上传到s3

我有这个代码，它采用文件的物理路径并将其上传到s3但在上面的例子中我有流

try{
        $s3 = Aws\S3\S3Client::factory(array(
                                            'region'    =>  S3_REGION,
                                            'version'   => 'latest',
                                            'credentials' => array(
                                                'key' => S3_ACCESS_KEY,
                                                'secret'  => S3_SECRET_KEY,
                                              )
                                        ));



        $s3->putObject([
            'Bucket'    =>  $this->s3bucket,
            'Key'       =>  "uploads/{$name}",
            'Body'      =>  fopen($path,'rb'),
            'ACL'       =>  'public-read'
        ]);

            return '';
    }catch(S3Exception $e){
        //return $e->getMessage();
        return 'Error Uploading File, Please try again';
    }

所以问题是将流转换为文件并上传到s3，如何更改上面的代码来做到这一点

提前致谢。