Allow using non-Premium keys for Google Maps client

server/lib/python/cartodb_services/cartodb_services/google/client_factory.py

@@ -5,6 +5,7 @@ import googlemaps
 import base64
 from exceptions import InvalidGoogleCredentials
 
+
 class GoogleMapsClientFactory():
     clients = {}
 
@@ -13,11 +14,14 @@ class GoogleMapsClientFactory():
         cache_key = "{}:{}:{}".format(client_id, client_secret, channel)
         client = cls.clients.get(cache_key)
         if not client:
+            if client_id:
                 cls.assert_valid_crendentials(client_secret)
                 client = googlemaps.Client(
                     client_id=client_id,
                     client_secret=client_secret,
                     channel=channel)
+            else:
+                client = googlemaps.Client(key=client_secret)
             cls.clients[cache_key] = client
         return client