In order to access the Google drive API or Google drive SDK you must first register your application on Google Developer console and enable the google drive API.
After that its a good idea to use one of the official google client libraries to access the API.
There are a number of other client libraries in early-stage of development a full list can be found at Google APIs Client libraries
if you want to reproduce, please indicate the source:
Getting started with google-drive-sdk – Installation or Setup - CodeDay