I'm in the process of developing an app that will allow users to perform a lot of the same actions of our website (slimmed down, of course) but we're also toying with the idea of adding a facebook login FOR our website. From what I've read, allowing facebook logins requires you to submit your website and get an app id. So now I will have 2 app IDs with different types of permissions (the app permissions will have multiple, login will only have basic) for each, will I be able to just store 1 access token for a user (whichever has the higher level of permissions) or do I need to store both?
From what I can tell, I'll only need 1, but I I'd like to get some insight before beginning this process. Thanks!
Authentication tokens are application specific. One possible alternative for you is to use the Developer application to enable your application to be both an "app on Facebook" and a "Website" (see the Select how your app integrates with Facebook section). This would enable you to use the same application ID both on your website and in the Facebook canvas application.