Turn your Foursquare Data Archive into a GeoJSON file

.gitignore

checkins/
checkins.geojson

foursquare_to_geojson.py

import glob, json

# this script loves this script
# https://gist.github.com/3350235

points = []
vids = set()
places = glob.glob("checkins/*.json")

for p in places:
    pj = json.load(open(p))
    if pj['venue']['id'] not in vids:
        vids.add(pj['venue']['id'])
        coords = [
            pj['venue']['location']['lng'],
            pj['venue']['location']['lat']]
        points.append({
            'type': 'Feature',
            'geometry': {
                'type': 'Point',
                'coordinates': coords
            },
            'properties': {
                'name': pj['venue']['name'],
                'id': pj['venue']['id']
            }
        })

json.dump({ 'type': 'FeatureCollection', 'features': points }, open('checkins.geojson', 'w'), indent=2)