Need a powershell script to update 300+ SharePoint SitePages

Question

Is there a PowerShell/PNP script that will update all "Highlighted Content" web parts within multiple site pages within a site? Need to update the web part Layout from "Grid" view to "List" view and don't want to have to do each manually??

Any help is appreciated.

Answer 1

@Taco_Buffet

Got it figured out! Here's what I used to gather all highlighted content WebParts for all site pages for a specific site. Was able to change layoutID from "Card" ("Grid" view in UI) along with also updating the max items to 500.

$Site= Get-SPOSite -Identity <SiteURL>
$pages= Get-PnPListItem -List sitepages
Foreach($page in $pages) {
    WRITE-HOST Checking $Page.FieldValues["FileLeafRef"]
    $pageName= $page.FieldValues["FileLeafRef"]
    $pg= Get-PnPClientSidePage -Identity $pageName
    $WebParts= $pg.Controls
     Foreach($WebPart in $WebParts | Where-Object {$_.Title -eq "Highlighted Content"}) {
         Write-Host Getting WebPart Instance ID
          $WPInstID= $WebPart.InstanceId 
          $WpPJ= $Webpart.PropertiesJson
     WRITE-HOST Converting from JSON
     $WpJ= ConvertFrom-Json -InputObject $WpPJ
       WRITE-HOST Changing $WPInstID to LIST VIEW
            IF($WpJ.layoutId -eq "Card") {
              $WpJ.layoutId = "List"
              $WpJ.templateId = 2
              $WpJ.maxItemsPerPage = 500}
      Set-PnPPageWebPart -Page $PageName -Identity $WPInstID -PropertiesJson (ConvertTo-JSON  $WpJ -Compress -Depth 10)
    }
   }