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Turning in my geocoding and web API toolbox #6

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Turning in my geocoding and web API toolbox #6

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28 changes: 20 additions & 8 deletions mbta_finder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,8 @@


# Useful URLs (you need to add the appropriate parameters for your requests)
GMAPS_BASE_URL = "https://maps.googleapis.com/maps/api/geocode/json"
MBTA_BASE_URL = "http://realtime.mbta.com/developer/api/v2/stopsbylocation"
GMAPS_BASE_URL = "https://maps.googleapis.com/maps/api/geocode/json?"
MBTA_BASE_URL = "http://realtime.mbta.com/developer/api/v2/stopsbylocation?"
MBTA_DEMO_API_KEY = "wX9NwuHnZU2ToO7GmGR9uw"


Expand All @@ -25,7 +25,7 @@ def get_json(url):
Given a properly formatted URL for a JSON web API request, return
a Python JSON object containing the response to that request.
"""
pass
return urllib2.urlopen(url)


def get_lat_long(place_name):
Expand All @@ -36,8 +36,12 @@ def get_lat_long(place_name):
See https://developers.google.com/maps/documentation/geocoding/
for Google Maps Geocode API URL formatting requirements.
"""
pass

f = get_json(GMAPS_BASE_URL+urllib.urlencode({'address':place_name}))
data = json.loads(f.read())
try:
return (data['results'][0]['geometry']['location']['lat'], data['results'][0]['geometry']['location']['lng'])
except IndexError:
raise IndexError("Location not found!")

def get_nearest_station(latitude, longitude):
"""
Expand All @@ -47,13 +51,21 @@ def get_nearest_station(latitude, longitude):
See http://realtime.mbta.com/Portal/Home/Documents for URL
formatting requirements for the 'stopsbylocation' API.
"""
pass

f = get_json(MBTA_BASE_URL+urllib.urlencode({"api_key":MBTA_DEMO_API_KEY,"lat":latitude,"lon":longitude,"format":"json"}))
data = json.loads(f.read())
try:
return (data['stop'][0]['stop_name'], data['stop'][0]['distance'])
except IndexError:
raise IndexError("No stations were found near {},{}".format(latitude, longitude))

def find_stop_near(place_name):
"""
Given a place name or address, print the nearest MBTA stop and the
distance from the given place to that stop.
"""
pass
station = get_nearest_station(*get_lat_long(place_name))
print "Station: "+station[0]
print "Distance: "+str(int(float(station[1])*1609.34))+" m"


find_stop_near("4 Yawkey Way, Boston, MA 02215")