Getting location coordinates from Address

The user will be prompted enter his address in a textfield and in the backend I want to get the location coordinates of the address.

I’m using geocoding service from google but not any of their APIs. I read somewhere in their document that “use of the geocoder for any purpose other than obtaining locations that will be displayed using the google maps APIs is a violation of the Terms of Service”.

And this is how HTTP request I use

http://ift.tt/1DZVPVc

Can I do this? I’m confused because I'm not showing any map at all but I want to get the coordinates. Will this be violating their terms?