Question, transform login into "dynamic" iveview and navigation caching

[ndrean]

Question : suppose the app lets users navigate without logging in. When he wants to perform an action that requires identification, you redirect him to the login if not (and if he wants to ..!). How could I do this and come back to where he was? because the current pages are not liveviews. Is this "just use liveviews?" Do I need to cache the socket state in say ETS during the lifetime of the session? Any reference/guidance on how this is done?