Microsoft Graph API - paging large collections - php

Question

I'm just looking at the Microsoft Graph API PHP SDK to get a bunch of resources, notably Users.
Looking a the SDK docs, there's 2 ways to get users, one using the createRequest() method and the other using the createCollectionRequest() method.
The docs suggests using the createCollectionRequest() and then just doing a while loop, array_merge and getPage() to create an array.
while (!$docGrabber->isEnd()) {
$docs = array_merge($docs,$docGrabber->getPage());
}
The issue is, I have a collection of ~50,000 users, so this method isn't particularly efficient.
I guess the biggest issue, i that the above example (using the while loop) is to avoid using the #odata.nextLink that the API returns.
But, what if we actually want to use this, instead of returning every single record in a single array?
Thanks

Answer 1

Instead of using getPage() and that sample, you can access the nextlink with something like this:
$url = "/users";
// Get the first page
$response = $graph->createCollectionRequest("GET", $url)
->setPageSize(50)
->execute();
if ($response->getNextLink())
{
$url = $response->getNextLink();
// TODO: remove https://graph.microsoft.com/v1.0 part of nextlink
} else {
// There are no more pages.
return null;
}
// get the next page, page size is already set in the next link
$response = $graph->createCollectionRequest("GET", $url)
->execute();