Download attachments from a SharePoint Online list

Download attachments from a SharePoint Online list.

PowerShell

param
(
    [Parameter(Mandatory = $true)] [string] $SiteURL,
    [Parameter(Mandatory = $true)] [string] $ListTitle,
    [Parameter(Mandatory = $true)] [string] $DownloadDirectory
)

$m365Status = m365 status
if ($m365Status -match "Logged Out") {
  Write-Host "Logging in the User!"
  m365 login --authType browser
}

Try {

    #Get All Items from the List
    $ListItems = m365 spo listitem list --webUrl $SiteURL --listTitle $ListTitle | ConvertFrom-Json

    #Create download directory if it doesn't exist
    If (!(Test-Path -path $DownloadDirectory)) {           
        New-Item $DownloadDirectory -type directory         
    }

    #Iterate through each list item
    Foreach ($Item in $ListItems) {

        #Get All attachments from the List Item
        $Attachments = m365 spo listitem attachment list --webUrl $SiteURL --listTitle $ListTitle --itemId $Item.Id | ConvertFrom-Json
        foreach ($Attachment in $Attachments) {
            $TargetFilePath = "$($DownloadDirectory)/$($Item.Id)_$($Attachment.FileName)"
            #Download attachment
            m365 spo file get --webUrl $SiteURL --url $Attachment.ServerRelativeUrl --asFile --path $TargetFilePath
        }
    }

    write-host  -f Green "List Attachments Downloaded Successfully!"
}
Catch {
    write-host -f Red "Error Downloading List Attachments!" $_.Exception.Message
}