Retreive data from website

I am trying to make a login system in my game for accounts and stuff and I have an idea of how I want to do it. I can have them make an account on my website and then I get the username and password I add it to a google spreadsheet so they can login into the game. Is there a way that I can use the WWW class to retrieve data from the spreadsheet. I know the WWW class does something like that but I am not sure for retrieving data like.

 

This is straight from the Google Docs API.

https://developers.google.com/chart/interactive/docs/querylanguage?csw=1

 

Is there an eaiser way? Also, if I were to use that, would I be able to change and receive data at runtime?

 

Is there an easier way? Umm..not sure never done this before but the Google API looks solid, its just a matter of sending over some queries with WWWForm. If the API says you can change the data then yes, again this is assuming you are using a Google Doc and you have the permission set to public.

 

I am not a real fan of Google Docs I use iCloud so I am not too familiar although I have used it for some projects in the past.