File Size Mismatch After 100MB Uploading via nodejs using GramJS

[kkm]

When uploading files via the client.sendFile() function in GramJS on Node.js, there's a discrepancy in file size between the uploaded file and the downloaded file. Files uploaded directly through a web browser maintain their original size upon download, but files uploaded using GramJS show a size increase.

1. Use GramJS's client.sendFile() to upload a file.

const result = await client.sendFile("me",
  {
    file: 'Telegram_04.zip',
    progressCallback: (downloadedBytes) => {
      console.log(`Upload: ${Math.floor(downloadedBytes * 100)}%`);
    },
    forceDocument: true
  })
console.log(result.media.document);

3. Download the file and check the file size.
4. Observe the size difference between the original and downloaded file.

Direct browser uploads and downloads maintain file integrity, but uploads through GramJS's client show discrepancies.