Return vSphere licenses from a vCenter Server

Get-VILicense.ps1

function Get-VILicense {
	
<#
.SYNOPSIS
	Return vSphere license deatils from the connected vCenter Server(s)
.DESCRIPTION
	Return vSphere license deatils from the connected vCenter Server(s)
.EXAMPLE
	Get-VILicense -Verbose
.OUTPUTS
	System.Management.Automation.PSCustomObject
.NOTES
	
	--------------------------------
	Author: Kevin Kirkpatrick
	Email: kevin@nullzero.io
	GitHub: https:\GitHub.com\vScripter
	Last Updated: 20170921
	Last Updated By: K. Kirkpatrick
	Last Update Notes:
	- Published to GitHub Gist
#>


	[cmdletbinding()]
	[OutputType([System.Management.Automation.PSCustomObject])]
	param ()

	BEGIN {

		Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)] Processing Started"

	} # end BEGIN block
	
    PROCESS {

        try	{

            # Using Write-Warning instead of Write-Verbose so that Get-View verbose messages are suppressed
            Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)] Gathering vSphere license details"

            $ServiceInstance = $null
            $ServiceInstance = Get-View ServiceInstance

            Foreach ($licenseMan in Get-View ($ServiceInstance | Select-Object -First 1).Content.LicenseManager) {

                Foreach ($license in $LicenseMan.Licenses) {

                    [PSCustomObject]@{
                        VIServer       = ([Uri]$LicenseMan.Client.ServiceUrl).Host
                        Name           = $License.Name
                        Key            = $License.LicenseKey
                        CostUnit       = $License.CostUnit
                        Total          = $License.Total
                        Used           = $License.Used
                        Information    = $License.Labels.Value
                        ExpirationDate = ($License.Properties | Where-Object { $_.key -eq "expirationDate" }).Value
                    } # end obj

                } # end foreach $license

            } # end foreach $licenseMan

        } catch	{

            Write-Warning -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)][ERROR] $_"

        } # end try/catch

    } # end PROCESS block

    END {

		Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)] Processing Complete"

    } # end END block

} # function