Private/Get-TemplateParameters.ps1
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function Get-TemplateParameters { <# .SYNOPSIS Extract template parameter block as a PowerShell object graph. .PARAMETER TemplateResolver A resolver object returned by New-TemplateResolver. .OUTPUTS [object] Parameter block deserialised from JSON or YAML, or nothing if template has no parameters. #> param ( [object]$TemplateResolver ) $template = $TemplateResolver.ReadTemplate() # Check YAML/JSON try { $templateObject = $template | ConvertFrom-Json if ($templateObject.PSObject.Properties.Name -contains 'Parameters') { return $templateObject.Parameters } else { # No parameters return } } catch { if (-not $Script:yamlSupport) { throw "Template cannot be parsed as JSON and YAML support unavailable" } } # Try YAML - convert it through JSON and back to ensure the final object looks the same as one converted directly from JSON $templateObject = $template | ConvertFrom-Yaml | ConvertTo-Json | ConvertFrom-Json if ($templateObject.PSObject.Properties.Name -contains 'Parameters') { return $templateObject.Parameters } } |