Copies files from the local computer to an Office 365 Group

CopyFilesToOffice365Group.ps1

param(
    [String]
    $Path, #the path to the files to be uploaded
    
    [String]
    $siteUrl, #this is the URL of the Group in the format https://contoso.sharepoint.com/sites/yourGroupName
    
    [String]
    $listName = "Shared Documents"
              #this is the path within the site to the place where you want to put the files
              #the Groups 'files' list is 'Shared Documents' which is the default
    )

Connect-PnPOnline -Url $siteUrl -UseWebLogin

$SourcePath = Get-Location

$AllFiles = Get-ChildItem $Path -Recurse -Force -ErrorAction SilentlyContinue

$filesCreated= @()

foreach ($file in $Allfiles) {

    if ($file.GetType().Name -ne "DirectoryInfo") {
    
        #$file.FullName
        $filePath = [System.IO.Path]::GetDirectoryName($file.FullName)+"\"
        $urlPath = $filepath.Replace($SourcePath,"").Replace("/","\")
        $SpoPath = $listName+$urlPath
        $FileUrl = $siteUrl + "/" + $listName + "/" + $file.FullName.Replace($pwd.ToString(),"").TrimStart("\").Replace("\","/")

        try {
            Get-PnPFile -Url $FileUrl -ErrorAction Stop | Out-Null
            # If we got here, the file exists in the target location, do nothing
        } catch { 
            # If we got here, the file doesn't exist in the target location, so let's create it
            $filesCreated+=Add-PnPFile -Path $file.FullName -Folder $SpoPath -Values @{
                Modified = $file.LastWriteTime
                Created = $file.CreationTime
            }
        }

    }

}