Deploy/Publish Nintex Workflow to Multiple Lists with PowerShell and Nintex Web Service

Requirement: We have three Nintex workflows. These three workflows to be deployed to all document libraries of a sub-site.

Nintex workflows provides web services to deploy Nintex workflow to multiple lists and libraries, which is explained in one of the Nintex whitepaper: How to create a workflow that automatically deploys other workflows, which calls the web service to publish provided workflow to multiple site's lists.

Instead of creating another workflow to deploy a workflow, I decided to use PowerShell and Nintex Web Service to deploy workflows on multiple lists. Here goes my PowerShell script:

[void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")

#Region MOSS2007-CmdLets

Function global:Get-SPSite()
{
  Param( [Parameter(Mandatory=$true)] [string]$SiteCollURL )
 
   if($SiteCollURL -ne '')
    {
    return new-Object Microsoft.SharePoint.SPSite($SiteCollURL)
   }
}

Function global:Get-SPWeb()
{
 Param( [Parameter(Mandatory=$true)] [string]$SiteURL )
  $site = Get-SPSite($SiteURL)
        if($site -ne $null)
            {
               $web=$site.OpenWeb();
            }
    return $web
}
#EndRegion

#Target SharePoint site URL
$WebURL="http://sharepoint.crescent.com/finance/CustomerApproval/"
#Get the Target Site
$Web=Get-SPWeb $WebURL
#Get the Target Lists 

#Nintex Web Service URL
$WebSrvUrl=$WebURL+"_vti_bin/nintexworkflow/workflow.asmx"

$proxy=New-WebServiceProxy -Uri $WebSrvUrl -UseDefaultCredential
$proxy.URL=$WebSrvUrl
#Path of the NWF Workflow File
$WorkflowFile= "C:\Documents and Settings\Salaudeen\Desktop\CustApproval.nwf"

#Get the Workflow from file
$NWFcontent = get-content $WorkflowFile

foreach($List in $web.lists)
 {
  #Get only document libraries. Leave the hidden and "Pending Approval Task" Document Library
  if ( ($List.BaseType -eq "DocumentLibrary") -and ($List.Hidden -eq $false) -and ($List.Title -ne "Pending Approval Tasks") )
   {
     write-host "Workflow is being Published to: "$List
     $proxy.PublishFromNWFXml($NWFcontent, $List.Title ,$List.Title+" Approval", $true)
     write-host "Done!"
   }
 }

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