geolocation_api/geocoding_api.py at master · AcademicsForTheFutureOfScience/geolocation_api · GitHub

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from flask import Flask, request
import json
import urllib
import urllib2

app = Flask(__name__)
GOOGLE_BASE_URL = 'http://maps.google.com/maps/api/geocode/'

def get_google_json(address):
	url_params = {}
	url_params['address'] = address
	url_params['sensor'] = 'false'
	url_params_encode = urllib.urlencode(url_params)
	url = GOOGLE_BASE_URL + 'json?' + url_params_encode
	google_json = json.load(urllib2.urlopen(url))
	return google_json

def parse_google_json(json_data):
	data = {}
	data['latitude'] = json_data['results'][0]['geometry']['location']['lat']
	data['longitude'] = json_data['results'][0]['geometry']['location']['lng']
	try:
		data['street_number'] = [x['short_name'] for x in json_data['results'][0]['address_components'] if 'street_number' in x['types']][0]
	except IndexError:
		data['street_number'] = None
	try:
		data['postal_code'] = [x['short_name'] for x in json_data['results'][0]['address_components'] if 'postal_code' in x['types']][0]
	except IndexError:
		data['postal_code'] = None
	try:
		data['postal_code_suffix'] = [x['short_name'] for x in json_data['results'][0]['address_components'] if 'postal_code_suffix' in x['types']][0]
	except IndexError:
		data['postal_code_suffix'] = None
	try:
		data['state_abbreviation'] = [x['short_name'] for x in json_data['results'][0]['address_components'] if 'administrative_area_level_1' in x['types']][0]
	except IndexError:
		data['state_abbreviation'] = None
	try:
		data['city_name'] = [x['short_name'] for x in json_data['results'][0]['address_components'] if 'locality' in x['types']][0]
	except IndexError:
		data['city_name'] = None
	try:
		data['county_name'] = [x['short_name'] for x in json_data['results'][0]['address_components'] if 'administrative_area_level_2' in x['types']][0]
	except IndexError:
		data['county_name'] = None
	try:
		route = [x['short_name'] for x in json_data['results'][0]['address_components'] if 'route' in x['types']][0]
		data['route'] = route
		route_split = route.split(' ')
		data['street_suffix'] = route_split[-1]
		data['street_name'] = ' '.join(route_split[:-1])
	except IndexError:
		data['route'] = None
		data['street_suffix'] = None
		data['street_name'] = None
	return data

def make_output_obj(parsed_google_json):
	result = {}
	result['input_index'] = 0
	result['candidate_index'] = 0
	result['delivery_line_1'] = parsed_google_json['street_number'] + ' ' + parsed_google_json['route']
	result['last_line'] = ''
	result['delivery_point_barcode'] = ''

	result['components'] = {}
	result['components']['primary_number'] = parsed_google_json['street_number']
	result['components']['street_name'] = parsed_google_json['street_name']
	result['components']['street_suffix'] = parsed_google_json['street_suffix']
	result['components']['city_name'] = parsed_google_json['city_name']
	result['components']['state_abbreviation'] = parsed_google_json['state_abbreviation']
	result['components']['zipcode'] = parsed_google_json['postal_code']
	result['components']['plus4_code'] = parsed_google_json['postal_code_suffix']
	result['components']['delivery_point'] = ''
	result['components']['delivery_point_check_digit'] = ''

	result['metadata'] = {}
	result['metadata']['latitude'] = parsed_google_json['latitude']
	result['metadata']['longitude'] = parsed_google_json['longitude']
	result['metadata']['county_name'] = parsed_google_json['county_name']

	result['analysis'] = {}

	return [result]

@app.route('/')
def api_root():
    return 'Welcome'

@app.route('/street-address')
def api_articles():
	address = request.args.get('street')
	google_json = get_google_json(address)
	parsed_google_json = parse_google_json(google_json)
	output = make_output_obj(parsed_google_json)
	return json.dumps(output)

if __name__ == '__main__':
	app.run(host='0.0.0.0', port=5000)