Looking for logging into the Facebook Api Email site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Facebook Api Email site. After that you can login as usual with your login credentials.
https://stackoverflow.com/questions/3611682/facebook-graph-api-how-to-get-users-email
https://qiita.com/kite_999/items/0c0336e740072570ccce
https://qiita.com/nightyknite/items/10ab1853581265ef4bd6
https://teratail.com/questions/72399
https://developers.facebook.com/docs/facebook-login/
https://developers.facebook.com/docs/graph-api/reference/v3.2/user
https://techblog.zozo.com/entry/facebook_graph_api
https://paiza.hatenablog.com/entry/2015/07/22/2015%E5%B9%B47%E6%9C%889%E6%97%A5%E4%BB%A5%E9%99%8D%E3%81%ABFacebook%E8%AA%8D%E8%A8%BC%E3%81%A7%E3%83%A1%E3%83%BC%E3%83%AB%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9%E3%81%8C%E5%8F%96%E3%82%8C%E3%81%AA%E3%81%84
http://c-geru.com/as_blind_side/2017/04/facebookapiphp.html
https://forums.expo.io/t/i-cannot-get-a-users-email-when-i-use-facebook-login/5172
https://github.com/facebook/php-graph-sdk/issues/932
https://github.com/jaredhanson/passport-facebook/issues/214
https://damelog.com/sns/facebook/facebook-app-review-became-more-robust/