====== Google API ======

  * Google cloud api provides access to google map data
    * you need to create a google cloud project
    * link to a credit card (it is free for under free tier, and it also have some credit for testing)
    * create a key, which use to access google api from your app or program

====== Google Map API ======

Google has many access point for different map data,
 
  * 3d tile: allow access google 3d map data
  * geocode: allow convert your location name to gps<code python>
import requests
g_api = "YOURKEYTEXT"

def geocode(address, api_key="", info= 0):
    headers = {'User-Agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.246"}
    if api_key == "":
        api_key = g_api
    geocoding_endpoint = 'https://maps.googleapis.com/maps/api/geocode/json'
    elevation_endpoint = 'https://maps.googleapis.com/maps/api/elevation/json'
    params = {
        'address': address,
        'key': api_key
    }

    geocoding_response = requests.get(geocoding_endpoint, params=params, headers=headers)
    geocoding_data = geocoding_response.json()

    # Extract the GPS coordinates
    if geocoding_data['status'] == 'OK':
        location = geocoding_data['results'][0]['geometry']['location']
        if info:
            print('''
#=======================================
#  {0}
#======================================='''.format(address))
            pprint.pprint(geocoding_data['results'][0])
        latitude = location['lat']
        longitude = location['lng']
        
        elevation_params = {
            'locations': f'{latitude},{longitude}',
            'key': api_key
        }
        elevation_response = requests.get(elevation_endpoint, params=elevation_params, headers=headers)
        elevation_data = elevation_response.json()
        if elevation_data['status'] == 'OK':
            elevation = elevation_data['results'][0]['elevation']
            if info:
                pprint.pprint(elevation_data['results'][0])
            return latitude, longitude, elevation
        else:
            return latitude, longitude, None
    else:
        return None
</code>