Powershell upload to dropbox converted to powershell2

powershell upload to dropbox powershell 2

<#
Ported to powershell2 from script by Laurent Kempé 
http://laurentkempe.com/2016/04/07/Upload-files-to-DropBox-from-PowerShell/

.SYNOPSIS
This is a Powershell script to upload a file to DropBox using their REST API.

.DESCRIPTION
This Powershell script will upload file to DropBox using their REST API with the parameters you provide.

.PARAMETER SourceFilePath
The path of the file to upload.
.PARAMETER TargetFilePath
The path of the file on DropBox.

.ENV PARAMETER DropBoxAccessToken
The DropBox access token.
#>


function Invoke-DropboxUpload {
Param(
    [Parameter(Mandatory=$true)]
    [string]$SourceFilePath,
    [Parameter(Mandatory=$true)]
    [string]$TargetFilePath,
    [Parameter(mandatory=$true)]
    [string]$ApiKey
)

$url = "https://content.dropboxapi.com/2/files/upload"

$file = [IO.File]::ReadAllBytes($SourceFilePath)
[net.httpWebRequest] $req = [net.webRequest]::create($url)

$arg = '{ "path": "' + $TargetFilePath + '", "mode": "add", "autorename": true, "mute": false }'
$authorization = "Bearer " + $ApiKey

$req.method = "POST"
$req.Headers.Add("Authorization", $authorization)
$req.Headers.Add("Dropbox-API-Arg", $arg)
$req.ContentType = 'application/octet-stream'
$req.ContentLength = $file.length
$req.TimeOut = 50000
$req.KeepAlive = $true
$req.Headers.Add("Keep-Alive: 300");
$reqst = $req.getRequestStream()
$reqst.write($file, 0, $file.length)
$reqst.flush()
$reqst.close()

[net.httpWebResponse] $res = $req.getResponse()
$resst = $res.getResponseStream()
$sr = new-object IO.StreamReader($resst)
$result = $sr.ReadToEnd()
$result
$res.close()

}

please make it a function or make it a module add some examples it makes work a lot more easier.