Look up RDAP information listed in a input file

req-rdap.ps1

Get-Content input.txt | Foreach-Object {
  $item = invoke-webrequest https://www.rdap.net/ip/$_ | convertfrom-json;
  $item | Add-Member -MemberType NoteProperty -Name "ipaddr" -Value "$_";
  $item.PSObject.Properties.Remove("entities");
  $item.PSObject.Properties.Remove("links");
  $item.PSObject.Properties.Remove("notices");
  $item | convertto-json;
}