understanding Google's OAuth 2.0

[aster]

Hello,

I am finishing a program where I use Google's OAuth 2.0, I will need to move this program between different computers.

To authenticateI use a very long dictionary (like this) which I downloaded from google

{"installed":{"client_id":"1-2.apps.googleusercontent.com","project_id":"3-4","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://oauth2.googleapis.com/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_secret":"5-6","redirect_uris":["urn:ietf:wg:oauth:2.0:oob","http://localhost"]}}

My question is: are you aware of other ways to authenticate or is this the only possible way?