title: How can I get facebook access tokem from Azure mobile service client SDK
body: <p>I believe that auth token that we have in user.MobileServiceAuthenticationToken is the access token for the azure mobile service, my app needs to upload the image to user's FB album, so I need Facebook auth token on the client side, so that client can upload the pictures directly, it doesn't make sense to first send the pictures to backend and backend uploads the pictures.</p>