SFTP_upload_on_file_change.ps1

## Install Posh-SSH by running the following from Powershell as Admin:
# iex (New-Object Net.WebClient).DownloadString("https://gist.github.com/darkoperator/6152630/raw/c67de4f7cd780ba367cccbc2593f38d18ce6df89/instposhsshdev")
#

## SFTP Config - Change these.
$Server_Ip = '10.10.9.50'
$Username = 'root'
$Password = 'hunter2'
$Upload_Path = '/some/folder/'

## Local filesystem watcher Config - Change these.
$watchDir = "C:\temp\"
$watchFilter = "*.txt


## Do Not Edit Below
$Password_Secure = ConvertTo-SecureString $Password -AsPlainText -Force
$Credentials = New-Object System.Management.Automation.PSCredential ($Username, $Password_Secure)

# Load the Posh-SSH module
#Import-Module C:\Temp\Posh-SSH

function uploadFile($fullFileName)
{
    $ThisSession = New-SFTPSession -ComputerName $Server_Ip -Credential $Credentials

    # Upload local file to remote path
    Set-SFTPFile -SessionId ($ThisSession).SessionId -LocalFile $fullFileName -RemotePath $Upload_Path

    #Disconnect all SFTP Sessions
    Get-SFTPSession | % { Remove-SFTPSession -SessionId ($_.SessionId) }
}

$watcher = New-object System.IO.FileSystemWatcher $watchDir
$watcher.EnableRaisingEvents = $true
$watcher.Filter = $watchFilter

$changed = Register-ObjectEvent $watcher "Changed"  -Action {
    Write-Host $eventArgs.ChangeType, $eventArgs.Fullpath
    uploadFile $eventArgs.Fullpath
}

while($true) {
    echo "."
    start-sleep -s 10
}