Public/ObjectBuilder/New-R1ComputedAttributeExpression.ps1

# .ExternalHelp psRadiantOne-help.xml
function New-R1ComputedAttributeExpression {
    [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'Low')]
    [OutputType('System.String')]
    param(
        [parameter(
            Mandatory = $true,
            ValueFromPipelineByPropertyName = $true
        )]
        [ValidateNotNullOrEmpty()]
        [string]$dn,

        [parameter(
            Mandatory = $true,
            ValueFromPipelineByPropertyName = $true
        )]
        [ValidateNotNullOrEmpty()]
        [string]$primaryObject,

        [parameter(
            Mandatory = $true,
            ValueFromPipelineByPropertyName = $true
        )]
        [ValidateLength(1, 10000)]
        [string]$signature,

        [parameter(
            Mandatory = $true,
            ValueFromPipelineByPropertyName = $false
        )]
        [ValidateNotNull()]
        [System.Collections.IDictionary]$values
    )

    Begin {

        Assert-R1Session -RequireToken

    }#begin

    Process {

        $URI = Resolve-R1ServiceUrl -Service Namespace -Path "naming_contexts/$($dn | Get-EscapedString)/object_builder/primary_objects/$($primaryObject | Get-EscapedString)/computed_attr_functions"

        $Body = [ordered]@{
            signature = $signature
            values    = @($values.Keys | ForEach-Object { [ordered]@{ name = "$PSItem"; value = "$($values[$PSItem])" } })
        } | ConvertTo-R1JsonBody -EmptyArrayProperty values

        if ($PSCmdlet.ShouldProcess("$dn ($primaryObject)", "Build Expression from '$signature'")) {

            $Result = Invoke-R1RestMethod -Uri $URI -Method POST -Body $Body

            if ($null -ne $Result) {

                $Result.expression

            }

        }

    }#process

    End { }#end

}