Invoice PDF download via REST API

[m8code]

I'm making POC for my client. I need to download batch of invoices in PDF format(for example, all invoices from last month). Is it possible to download pdf files via REST API? When I crawled on site I noticed request(aftek click PDF button in invoice actions) like this:
https://www.sandbox.paypal.com/invoice/actions/render-pdf/INV2-3DM5-KT37-4G3G-NU9T?time=161084669850...
Can I make that request from server side?

[Hammer-Schlagen]

@m8code --

Your link requires the viewer to be logged-in to their account, and will only display the invoice if the logged-in user is a party to the invoice.  There is a not-so-well-know URI that took me several months to figure out.  In demonstration, here's a PHP function that cURL's the PDF's bytes of a specific invoice so they can be later saved as appropriate:

Spoiler

function get_invoice_bytes($paypal_id) {

   $ch = curl_init();

   curl_setopt_array($ch, array(
      CURLOPT_URL => 'https://www.sandbox.paypal.com/invoice/payerView/detailsInternal/' . $paypal_id .'?printPdfMode=true ',
      CURLOPT_FOLLOWLOCATION => TRUE,
      CURLOPT_HEADER => FALSE,
      CURLOPT_RETURNTRANSFER => TRUE,
    ));
    $bytes = curl_exec($ch);
    curl_close($ch);
    return $bytes;

}

$pdf_bytes = get_invoice_bytes('INV2-3DM5-KT37-4G3G-NU9T');

[agruhn]

i have write a little php script which downloads invoice details and renders the links to download as html page. then u can open it into browser and open all links in tabs at once for multi download.