Bricklink

1.0

public/Get-ItemId.ps1

                                function Get-ItemId {

    [CmdletBinding()]

    param

    (

        [Parameter(Mandatory)]

        [ValidateNotNullOrEmpty()]

        [string]$ItemNumber

    )

    $ErrorActionPreference = 'Stop'

    $invCallParams = @{

        Uri    = 'https://www.bricklink.com/v2/catalog/catalogitem.page'

        Body   = @{

            'P'       = $ItemNumber

            'idColor' = 0

        }

        Method = 'GET'

    }

    $response = InvokeBricklinkWebCall @invCallParams

    $response | Select-String -Pattern 'idItem:\s+(\d+)' | ForEach-Object { $_.matches[0].groups[1].value }

}