addnavigation.ps1

#Credentials to connect to office 365 site collection url 
$username="[email protected]"
$password="yourpassword"
$Password = $password |ConvertTo-SecureString -AsPlainText -force

Write-Host "Load CSOM libraries" -foregroundcolor black -backgroundcolor yellow
Set-Location $PSScriptRoot
Add-Type -Path (Resolve-Path "Microsoft.SharePoint.Client.dll")
Add-Type -Path (Resolve-Path "Microsoft.SharePoint.Client.Runtime.dll")

Write-Host "CSOM libraries loaded successfully" -foregroundcolor black -backgroundcolor Green 

$credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($username, $password)

function Add-MenuNavigation($xmlNavs)
	{
	$Nodes = $Context.Web.Navigation.TopNavigationBar		
	$NavigationNode = New-Object Microsoft.SharePoint.Client.NavigationNodeCreationInformation
	  $NavigationNode.Title = $xmlNavs.Title
	  $NavigationNode.Url = $xmlNavs.Url
	  $NavigationNode.AsLastNode = $true			
	  $Context.Load($Nodes.Add($NavigationNode))
    try
    {
	$Context.ExecuteQuery()	
	Write-Host "Adding" $xmlNavs.Title "to Global Navigation Completed" -foregroundcolor black -backgroundcolor green	
    }
    catch
    {
     Write-Host Error Adding $xmlNavs.Title to Global Navigation $_.Exception.Message -foregroundcolor black -backgroundcolor Red
    }
	}
  
# Redaing Data from configuration.xml file
$xmlFilePath = "$PSScriptRoot\Navigation.xml"
Write-Host "Load solutions xml file" -foregroundcolor black -backgroundcolor yellow
[xml]$xmlContent = (Get-Content $xmlFilePath)
if (-not $xmlContent)
{
Write-Host "Xml was not loaded successfully." -foregroundcolor black -BackgroundColor Red	
return
}	
Write-Host "Solutions xml file loaded successfully" -foregroundcolor black -BackgroundColor Green

$xmlContent.sites.site|
ForEach-Object {
Write-Host "authenticate to SharePoint Online site collection" $xmlContent.sites.site.Url " and get ClientContext object" -foregroundcolor black -backgroundcolor yellow	
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($_.Url)
$Context.Credentials = $credentials
$context.RequestTimeOut = 5000 * 60 * 10;
$web = $context.Web
$site = $context.Site
$context.Load($web)
$context.Load($site)
try
{
$context.ExecuteQuery()
Write-Host "authenticate to SharePoint Online site collection" $xmlContent.sites.site.Url "and get ClientContext object" -foregroundcolor black -backgroundcolor Green	
}
catch
{
Write-Host "Not able to authenticate to SharePoint Online site collection" $xmlContent.sites.site.Url "$_.Exception.Message" -foregroundcolor black -backgroundcolor Red	
return
}
 #Add Menu to Global Navigation
$_.globalnav.nav |
	ForEach-Object {
			Write-Host "Adding" $_.Title "to Global Navigation Starting..." -foregroundcolor black -backgroundcolor yellow
			Add-MenuNavigation ($_)	
		}
}