powershell connection to sftp via WinSCP

Hi, thank you for Winscp!
I'm trying to make script in powershell to download and upload files to sftp server. It works well, but I need to check if the folder where I want to upload files is empty. Next thing I need to make is compare the length of files transfered to sftp with files on my local disc. I'm using

if (@(Compare-Object $files_sftp $files_local -SyncWindow 0).Length -eq 0) {
Write-Host "OK" }
else { Write-Host "NOT ok" }

So I need to get content of remote directory with powershell command Get-Childitem to variable $files_sftp or some general advice how to connect winscp scipting with powershell.
Thank you very much!

I do not know powershell (though we would like to add powershell example eventually). But you definitelly need to make use of Session.ListDirectory method:
https://winscp.net/eng/docs/library_session_listdirectory

Basic PowerShell example added
https://winscp.net/eng/docs/library#powershell
More examples (and syntax highlighting) coming soon.