connect2googlegeo.py

#!python2
# -*- coding: iso-8859-1 -*-

try:
    import requests
    import json
except ImportError:
    print("""You need "requests" !    or run :C:\Python27\Scripts>pip install requests """)


#CALL GOOGLE API

def make_sample_export():
    print "test"

def log_request(adress, response):
    try:
        f = open("api_failure.log", 'a')
        f.write(adress + ": " + response + "\n")
        f.close()
    except:
        pass

YOUR_API_KEY="AIzaSyC_ANbi6xo4ydjzOWs_EtWYm7R0dFMgHNs" # FOR TESTING ADD YOUR API KEY HERE

def connect_2_service(adress, key = YOUR_API_KEY):
    print adress
    if adress == "":
        print "empty adress"
        log_request(adress, "empty adress")             # log 
        return ["EMPTY ADRESS", [0,0]]                  # and return status + list of zeros

    try:
        url = u"https://maps.googleapis.com/maps/api/geocode/json?address=" + adress.decode('iso-8859-1') + "&key=" + key
        r = requests.get(url)
    except:
        print "network problem"
        log_request(adress, "problem with request query to google api")
        return ["NETWORK_PROBLEM", [0,0], ""]
        

    if(r.status_code == 200):                           # if connection can be established 
        json_response = r.json()                        # parse JSON response
        status = json_response["status"]                # check https://developers.google.com/maps/documentation/geocoding/intro?hl=de#StatusCodes 

        if(status == "OK"):                             # if results are returned
            j = json_response["results"]                # get the result part

            if len(j) > 1:                              # for multiple results the first entry (most probable) is returned
                status = "MULTIPLE_RESULTS"             # but user is informed that there were multiple results
                #print "multiple options:"
                #for option in j:
                #    print option["formatted_address"]

            location=  j[0]["geometry"]["location"]     # get location of first result
            list_lat_lon = [location["lat"],location["lng"]] # store lat and long in list
            adress = j[0]["formatted_address"]          # store formatted adress  
            print list_lat_lon                          # print coordinates  
            return [status, list_lat_lon, adress]       # return status + coordinates + adress

        if(status == "ZERO_RESULTS"):
            print "no results"
            log_request(adress, "no results")          
            return [status, [0,0], ""]                     

        if(status == "UNKNOWN_ERROR"):
            print "no results"
            log_request(adress, "unknown error")        
            return [status, [0,0], ""]                      

        if(status == "INVALID_REQUEST"):
            print "invalid request"
            log_request(adress, "invalid request")     
            return [status, [0,0], ""]                      

        if(status == "REQUEST_DENIED"):
            print "request denied"
            log_request(adress, "request denied")
            return [status, [0,0], ""]                      # probably API key error

        if(status == "OVER_QUERY_LIMIT"):
            print "over google map api query limit (not more than 2500 queries a day)"
            log_request(adress, "over query limit")
            return [status, [0,0], ""]                      # all 2500 requests per day used

    else:
        print "could not establish connection to google-geocoding service - CHECK NETWORK"
        log_request(adress, "status code: " + str(r.status_code))
        return ["NETWORK_PROBLEM", [0,0], ""]

#test = "testadress"
#print connect_2_service(test)