Do you want driving directions on your website but don’t want to mess around with the Google Maps api?

Well, you can easily implement Google driving directions by calling the url:

So, in Rails you could do something like this:
<%= button_to_function "Get Driving Directions", 
source_address)}&daddr=#{URI.escape(destination_address)}&hl=en\")" %>

Where source_address and destination_address are string variables containing things like:

London -> Manchester
SE5 0LL -> NW6 6RJ
221b Baker St -> 10 Downing Street

This method handles all the geocoding for ya – and is way simpler than messing with the GDirections api object.