PowerShell Save List as template and Download List Template to local folder

$AppId =""

$AppSecret = "" 

Function SaveListasTemplate {

    param

    (

        [string]$SiteURL  = $(throw "Enter the Site URL!"),

        [string]$ListName = $(throw "Enter the List Name!"),

        [string]$FileName = $(throw "Enter the List Template Name!"),

        [string]$TemplateName = $(throw "Enter the List Template Name!"),

        [string]$Description = $(throw "Enter the List Description Info!"),

        [string]$IncludeData= $(throw "List content include or not!")

    )

    Try{

        #Get Credentials to connect

        #$Cred= Get-Credential

       

        #Setup the context

        #$Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)

        #$Ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.Username, $Cred.Password)

        

        #Setup Authentication Manager

        $AuthenticationManager = new-object OfficeDevPnP.Core.AuthenticationManager

        $Ctx = $AuthenticationManager.GetAppOnlyAuthenticatedContext($SiteUrl,$AppId,$AppSecret)

        $Ctx.Load($Ctx.Web)

        $Ctx.ExecuteQuery()

 

        Write-Host $Ctx.Web.Title

        #Get the List

        $List = $Ctx.Web.lists.GetByTitle($ListName)

        $List.SaveAsTemplate($FileName, $TemplateName, $Description, $IncludeData)

        $Ctx.ExecuteQuery()

     

        Write-Host -f Green "List Saved as Template!"

    }

    Catch {

            write-host -f Red "Error Saving List as template!" $_.Exception.Message

    }

}

Function pnp_SaveListasTemplate {

    param

    (

        [string]$SiteURL  = $(throw "Enter the Site URL!"),

        [string]$ListName = $(throw "Enter the List Name!"),

        [string]$FileName = $(throw "Enter the List Template Name!"),

        [string]$TemplateName = $(throw "Enter the List Template Name!"),

        [string]$Description = $(throw "Enter the List Description Info!"),

        [string]$IncludeData= $(throw "List content include or not!")

    )

    Try{

        #Connect to PnP Online

        Connect-PnPOnline -Url $SiteURL -ClientId $AppId -ClientSecret $AppSecret 

        $Context  = Get-PnPContext

 

        #Get the List

        $List = Get-PnpList -Identity $ListName

 

        #Save List as template

        $List.SaveAsTemplate($TemplateFileName, $TemplateName, $TemplateDescription, $IncludeData)

        $Context.ExecuteQuery()

        Write-Host -f Green "List Saved as Template!"

    }

    Catch {

            write-host -f Red "Error Saving List as template!" $_.Exception.Message

    }

}

#Function to download a list template from SharePoint Online using powershell

Function Download_SPOListTemplate

{

    param

    (

        [string]$SiteURL  = $(throw "Enter the Site URL!"),

        [string]$ListTemplateName = $(throw "Enter the List Template Name!"),

        [string]$ExportFile = $(throw "Enter the File Name to Export List Template!")

    )

    Try {

        #Get Credentials to connect

        #Setup Authentication Manager

        $AuthenticationManager = new-object OfficeDevPnP.Core.AuthenticationManager

        $Ctx = $AuthenticationManager.GetAppOnlyAuthenticatedContext($SiteUrl,$AppId,$AppSecret)

         

        #Get the "List Templates" Library

        $List= $Ctx.web.Lists.GetByTitle("List Template Gallery")

        $ListTemplates = $List.GetItems([Microsoft.SharePoint.Client.CamlQuery]::CreateAllItemsQuery())

        $Ctx.Load($ListTemplates)

        $Ctx.ExecuteQuery()

 

        #Filter and get given List Template

        $ListTemplate = $ListTemplates | Where-Object { $_["TemplateTitle"] -eq $ListTemplateName }

 

        If($Null -ne $ListTemplate)

        {

            #Get the File from the List item

            $Ctx.Load($ListTemplate.File)

            $Ctx.ExecuteQuery()

 

            #Download the list template

            $FileInfo = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($Ctx,$ListTemplate.File.ServerRelativeUrl)

            $WriteStream = [System.IO.File]::Open($ExportFile,[System.IO.FileMode]::Create)

            $FileInfo.Stream.CopyTo($WriteStream)

            $WriteStream.Close()

 

            write-host -f Green "List Template Downloaded to $ExportFile!" $_.Exception.Message

        }

        else

        {

            Write-host -f Yellow "List Template Not Found:"$ListTemplateName

        }

    }

    Catch {

        write-host -f Red "Error Downloading List Template!" $_.Exception.Message

    }

}

$SiteURL = ""

$ListName="PSTestLibrary" 

#Configure Save list as template parameters

$FileName="PSTestLibrary Template"

$TemplateName="PSTestLibrary Template"

$Description ="List Template for PSTestLibrary"

$IncludeData = $False

$ExportFile = "C:\Temp\" + $ListName + ".stp"

SaveListasTemplate -SiteURL $SiteURL -ListName $listName -FileName $fileName -TemplateName $templateName -Description $description -IncludeData $include

#Call the function to Download the list template

Download_SPOListTemplate -SiteURL $SiteURL -ListTemplateName $TemplateName -ExportFile $ExportFile