hi. i'm new to ruby on rails. at the moment i'm developing web app with acr122u and iso/iec 14443a card. i want client pc to open web page, swipe cards, lookup tags which is already in the database then bring back some data to the page. i'd already tried gem nfc or nfc-eventd, both of them can read tags continuously. but how do i pass the tag to a page or look it up in database?
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