We did not cover using the RGoogleAnalytics API in detail in Chapter 2, Building Your First Application, and won't here either because it's a little outside of the scope of this book. The Google Analytics application in this book makes use of the RGoogleAnalytics package mentioned in Chapter 2, Building Your First Application. The code is given and briefly summarized in the following section to give you a feel for how to use it.

Note that my username and password have been replaced with XXXX. You can get your own user details from the Google Analytics website. Also note that this code is not included on the GitHub because it requires the username and password to be present in order for it to work.

library(RGoogleAnalytics)

### Generate the oauth_token object
oauth_token <- Auth(client.id = "xxxx",
  client.secret = "xxxx")

# Save the token object for future sessions
save(oauth_token, file = "oauth_token")

Once you have your client.id and client.secret...