Private/Get-AACPropertyValue.ps1
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function Get-AACPropertyValue { <# .SYNOPSIS Safely reads a possibly-absent property from an object, without tripping Set-StrictMode -Version Latest. .DESCRIPTION ConvertFrom-Json (used under the hood by Invoke-RestMethod) only creates a property for a key that was actually present in the JSON - an optional field that the server omitted, like Azure Resource Manager's "nextLink" (present only when there is a next page), the token endpoint's "refresh_token"/"id_token" (present only when offline_access/openid were granted), or a JWT claim like "preferred_username" (not guaranteed by every tenant/token config), does not exist on the resulting object at all - not just hold $null. Ordinary dot-notation property access ($obj.name) throws under Set-StrictMode -Version Latest when the property doesn't exist. $obj.PSObject.Properties[<name>] is a safe, explicit lookup that returns $null instead, which is what this wraps. Deliberately not an advanced function: it is called once per value read (cost rows, query pages, tokens), and [CmdletBinding()]'s parameter binding made each call about three times slower. #> param($InputObject, [string] $Name) if ($null -eq $InputObject) { return $null } $property = $InputObject.PSObject.Properties[$Name] if ($property) { return $property.Value } return $null } |