# upload.saveBigFilePart

> You cannot use this method directly, use the upload, downloadToStream, downloadToFile, downloadToDir methods instead; see https://docs.madelineproto.xyz for more info

[Back to methods index](index.html)



You cannot use this method directly, use the upload, downloadToStream, downloadToFile, downloadToDir methods instead; see https://docs.madelineproto.xyz for more info

### Parameters:

| Name     |    Type       | Description | Required |
|----------|---------------|-------------|----------|
|file\_id|[long](/API_docs/types/long.html) | Random file id, created by the client | Yes|
|file\_part|[int](/API_docs/types/int.html) | Part sequence number | Optional|
|file\_total\_parts|[int](/API_docs/types/int.html) | Total number of parts | Optional|
|bytes|[bytes](/API_docs/types/bytes.html) | Binary data, part contents | Yes|


### Return type: [Bool](/API_docs/types/Bool.html)

### Can users use this method: **YES**


### Can bots use this method: **YES**


### Can bots use this method over a business connection with the `businessConnectionId` flag: **NO**


### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):


```php
if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$Bool = $MadelineProto->upload->saveBigFilePart(file_id: $long, file_part: $int, file_total_parts: $int, bytes: 'bytes', );
```