Laravel datatable sort created_at

in controller

->editColumn('created_at', function ($row) {
    return [
        'display' => Carbon::parse($row->created_at)->format('d-m-Y H:i:s'),
        'timestamp' => $row->created_at->timestamp
    ];
})

in js

{
    name: 'created_at.timestamp',
    data: {
        _: 'created_at.display',
        sort: 'created_at.timestamp'
    }
}