Webiny\Component\Amazon\Bridge\S3\S3::multipartUpload PHP Method

    public function multipartUpload($bucket, $key, $sourcePath, $concurrency = 1)
    {
        $uploader = new MultipartUploader($this->instance, $sourcePath, ['bucket' => $bucket, 'key' => $key]);
        try {
            $uploader->upload();
            return true;
        } catch (MultipartUploadException $e) {
            return false;
        }
    }

 /**
  * In case of large files, use the multipartUpload method, so the file is sent in chunks to S3, without the need
  * to read the complete file in memory.
  *
  * @param     $bucket
  * @param     $key
  * @param     $sourcePath
  * @param int $concurrency
  *
  * @return mixed
  */
 public function multipartUpload($bucket, $key, $sourcePath, $concurrency = 1)
 {
     return $this->instance->multipartUpload($bucket, $key, $sourcePath, $concurrency);
 }