Please Help: uploadFile() sending empty or corrupted files to Google Drive API

I've been stuck on this for hours and I don't know how to proceed. I'm using Google's V3 Drive API to create a resumable request for large file creation.

When I use `uploadFile()`, it's creating images on my GDrive that are of 0 bytes (if `binaryStreamOnly` is true) or 46 bytes (if `binaryStreamOnly` is false). When I try to open the photo, I get "file is empty" error or a "file is corrupted" error.

The file that I'm trying to upload is the default waterfall picture that comes with the simulator's photo library. What am I doing wrong?

Google's API requires that I do an initial POST request call to generate a resumable upload link, then upload the data in a PUT request (which is what I'm using `uploadFile()` for.

Any help would be greatly appreciated as I've been struggling to get this to work.

Also, thanks a lot for this amazing library!

```
const uploadFileToDrive = async (fileDetails: FileDetails, accessToken: string): string | undefined => {
const resumableURL = 'https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable'

const files: UploadFileItem[] = [{
name: path.basename(fileDetails.filePath),
filename: path.basename(fileDetails.filePath),
filepath: fileDetails.filePath,
filetype: fileDetails.mimeType
}]

const initialResponse = await fetch(resumableURL, {
method: 'POST',
headers: {
'Authorization': `Bearer ${accessToken}`,
'X-Upload-Content-Type': fileDetails.mimeType,
// 'Content-Length': fileDetails.size.toString(),
'Content-Type': 'application/json; charset=UTF-8'
},
body: JSON.stringify({
name: path.basename(fileDetails.filePath),
mimeType: fileDetails.mimeType,
parents: ['root']
})
})

if (initialResponse.ok) {

console.log('\n\tFILE SIZE:', fileDetails.size.toString())

const location = initialResponse.headers.get('location')!
const uploadResult = RNFS.uploadFiles({
files,
toUrl: location,
method: 'PUT',
binaryStreamOnly: true,
headers: {
'Content-Length': fileDetails.size.toString()
},
begin(res) {
console.log('UPLOAD HAS BEGUN! JobId:', res.jobId)
},
progress(res) {
console.log('PROGRESS:', res)
const percentage = Math.floor((res.totalBytesSent/res.totalBytesExpectedToSend) * 100)
console.log('UPLOAD IS ' + percentage + '% DONE!')
}
})

return uploadResult.promise.then(response => {

// TODO: Handle appropriate errors https://developers.google.com/drive/api/guides/manage-uploads#http---single-request
if (response.statusCode === 200) {
console.log('Upload - Success')

return JSON.parse(response.body).id as string

} else if (response.statusCode >= 500 && response.statusCode < 600) {
console.log('Upload - Interrupted:', response)
} else {
console.log('Upload - Something went wrong:', response)
}

}).catch((err) => {
if(err.description === 'cancelled') {// cancelled by user
}

console.log('UploadResult:', err)
return undefined
})

} else {
console.log('Initial Upload request failed')
}
}

```