ios - Foursquare API: Consider close proximity as check-in -


i've been looking foursquare api on ios (through das-quadrat). i'd figure out if user is at specific location. know how find , can it. works.

how can tell if user close enough location consider close proximity check-in (i'm not interested in checking him in foursquare way)? it's want know user @ venue of category i'm monitoring. know can calculate distance between user's location , venue's location , consider every distance less than, say, 15 meters check-in wondering if there's more elegant solution, maybe api endpoint i'm missing.

i guess real time api best suited: https://developer.foursquare.com/overview/realtime

allows register notifications, foursquare heavy lifting you.


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