Public/Get-CiresonPortalConfigurationItem.ps1

function Get-CiresonPortalConfigurationItem
{
<#
    .SYNOPSIS
        Function to retrieve Configuration Item
     
    .DESCRIPTION
        Function to retrieve Configuration Item
     
    .PARAMETER ItemFilter
        Specifies the ItemFilter
     
    .NOTES
        Francois-Xavier Cat
        lazywinadmin.com
        @lazywinadmin
        github.com/lazywinadmin
#>

    #requires -version 3
    [CmdletBinding()]
    [OutputType([pscustomobject])]
    param
    (
        [Parameter(Mandatory = $true)]
        $ItemFilter
    )
    
    BEGIN
    {
        TRY
        {
            Write-Verbose -Message $(New-ScriptMessage -Block BEGIN -message 'Checking Pre-Requisites')
            [void](Get-CiresonPortalPSConfiguration -WarningAction Stop)
        }
        CATCH
        {
            # Stop the function
            Throw "Not Connected to Cireson Portal"
        }
        
    }
    PROCESS
    {
        TRY
        {
            # Configuration Items
            $URI = $CiresonPortalURL, "api/V3/Config/GetAffectedItemsList?itemFilter=$ItemFilter" -join '/'
            Write-Verbose -Message $(New-ScriptMessage -Block PROCESS -message $URI)
            (Invoke-RestMethod $URI -Credential $CiresonPortalCred) -as [PSCustomObject]
        }
        CATCH
        {
            $Error[0]
        }
    }
}