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Submitting Geocoding Toolbox #13

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50 changes: 35 additions & 15 deletions mbta_finder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,22 +11,23 @@
import urllib2 # urlopen function (better than urllib version)
import json


# 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"
MBTA_DEMO_API_KEY = "wX9NwuHnZU2ToO7GmGR9uw"


# A little bit of scaffolding if you want to use it
# Useful URLs
gmaps_base_url = "https://maps.googleapis.com/maps/api/geocode/json"
mbta_base_url = "http://realtime.mbta.com/developer/api/v2/stopsbylocation"
mbta_api_key = "wX9NwuHnZU2ToO7GmGR9uw"

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

f=urllib2.urlopen(url)
response_text = f.read()
response_data = json.loads(response_text)
# pprint (response_data)
# print response_data["results"][0]["formatted_address"]
return response_data

def get_lat_long(place_name):
"""
Expand All @@ -36,8 +37,13 @@ def get_lat_long(place_name):
See https://developers.google.com/maps/documentation/geocoding/
for Google Maps Geocode API URL formatting requirements.
"""
pass

new_place_name = place_name.replace(' ', '+')
url_of_place = gmaps_base_url + '?address={kwarg}&components=administrative_area:MA|country:US'.format(kwarg=new_place_name)
get_info = get_json(url_of_place)
lat_coordinate = get_info["results"][0]["geometry"]["location"]["lat"]
lon_coordinate = get_info["results"][0]["geometry"]["location"]["lng"]
# print (lat,lon)
return (lat_coordinate, lon_coordinate)

def get_nearest_station(latitude, longitude):
"""
Expand All @@ -47,13 +53,27 @@ def get_nearest_station(latitude, longitude):
See http://realtime.mbta.com/Portal/Home/Documents for URL
formatting requirements for the 'stopsbylocation' API.
"""
pass

url_of_station = mbta_base_url + '?api_key={}&lat={}&lon={}&format=json'.format(mbta_api_key, str(latitude), str(longitude))
get_info = get_json(url_of_station)
station_name = get_info["stop"][0]["stop_name"]
dist = get_info["stop"][0]["distance"]
formatted_dist = round(float(dist), 2)
distance = str(formatted_dist)
# print (station_name, distance)
return (station_name, distance)

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

lat = get_lat_long(place_name)[0]
lon = get_lat_long(place_name)[1]
# print get_nearest_station(lat,lon)
station_name = get_nearest_station(lat, lon) [0]
distance = get_nearest_station(lat, lon) [1]
return "The closest MBTA stop to %s is %s miles away at %s" % (place_name, distance, station_name)

# command that takes a place name or address as input, finds its latitude/longitude,
# and returns the nearest MBTA and its distance from the starting point.
print find_stop_near('Boston Commons')