Post to a Facebook user's stream at a later date? -

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what common workflow able post user's feed/stream couple of hours/days after they've accepted access permissions on "canvas" app?

for instance, if register interest notified when has been released, how post on wall release notification when occurs few days later?

specifically, how authentication work? 1 need log keys gathered during original authentication process?

when request permissions during authentication must request offline_access permission post users wall when they're not signed in. permission, access token use perform api requests becomes permanent, , can use @ time.

further reading: facebook offline access step-by-step


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