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I keep getting the screen bellow when trying to use Facebook login. I'm trying to use AppAuth for Android ( https://github.com/openid/AppAuth-Android ) it mentions a domain URL but it is an Android app. Trying to use the OAuth2 specifications. Used Auth endpoint "https://www.facebook.com/dialog/oauth" and token endpoint "https://graph.facebook.com/v2.10/oauth/access_token". Any ideas, of what it could really be. Thanks for the help.

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Leonardo Hernandez
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  • Possible duplicate of [Facebook OAuth "The domain of this URL isn't included in the app's domain"](https://stackoverflow.com/questions/37063685/facebook-oauth-the-domain-of-this-url-isnt-included-in-the-apps-domain) – Chris Gomez Sep 14 '17 at 18:00
  • I think it is different, he is using a website, I'm using native Android app, no URL exists. – Leonardo Hernandez Sep 14 '17 at 18:37
  • Is there a reason why you aren't using the Facebook Android SDK: https://developers.facebook.com/docs/facebook-login/android/ Related: https://www.smashingmagazine.com/2017/05/oauth2-logging-in-facebook/#whats-missing-from-oauth2 – Morrison Chang Sep 14 '17 at 19:42

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Lead maintainer for AppAuth-Android here. Facebook auth isn't directly supported by AppAuth, as they don't support the recommendations of RFC 8252. It is possible to make it work, see my demo.

My general recommendation would be to use the Facebook SDK if your app does not have an associated website. If the app has an associated site, perform the authentication via your site (in a custom tab) and then pass the necessary auth tokens back to the app.

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iainmcgin
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