I have used many apps on my Facebook pages to get items from etsy to appear and link up. you usually find one that works well but does not look nice or ones that look great but never seem to work.
I took me one click of a button and all of 30 seconds to set this one up. it's better than amazing! A big well done to the team who created it as its a wondrous program thats beautiful to look at unlike most of the others and very functional with a setting page that allows you to change things up if needed.
here is the link to their app on facebook apps.facebook.com/easysocialshop/?sc=pt&m=gr&cp=grrc
I just thought I would share, I hope it helps you all. I find a lot of quality traffic comes from our Facebook page so having a smart looking shop linking directly to your etsy shop right on the page is a wonderful asset.