curl -i -X GET "https://graph.facebook.com/v10.0/oembed_page?url={Page URL}&access_token={APP ID}|{Client Access Token}"
e.g. curl -i -X GET "https://graph.facebook.com/v10.0/oembed_page?url=https%3A%2F%2Fwww.facebook.com%2Ftechlogyforum&access_token=191545172686279|c98f87ecec83d6183004602be86410d7"