Need Current API URL(s) for Service Endpoint Field for SoapUI 5.4.0

Hi, I am new to SoapUI (using version 5.4.0).

I am am usung :

REST 101: The Beginner’s Guide to Using
and Testing RESTful APIs

 

1. I setup a new REST Project

2. In the end point URN window I type : http://maps.googleapis.com/maps/api/geocode/xml?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA&sensor=false

3. I click the green arrow 

Result:

<GeocodeResponse>
<status>OVER_QUERY_LIMIT</status>
<error_message>Keyless access to Google Maps Platform is deprecated. Please use an API key with all your API calls to avoid service interruption. For further details please refer to http://g.co/dev/maps-no-account</error_message>
</GeocodeResponse>

 

So I figured several things: 

The User Guide may be outdated

The URN is no longer valid

 

Could someone suggest a solution or provide current , workable URN's please?

Is there a 2018 version of " REST 101: The Beginner’s Guide to Using
and Testing RESTful APIs"?

 

Thanks