R help - Sep 2014 - Using R to get updated access token on FB Graph API?

Hi, R users,

Is it possible to use R to obtain access token to Facebook API automatically?
The access token generated in Facebook Graph API expires very soon so I'd
like to use R to generate new access token and grab it and save it to a variable
automatically every 60 days.

Is it possible? If so, which packages should I use? Could someone shed light?

Thanks!
	[[alternative HTML version deleted]]