google/google-api-nodejs-client — pull request #60 by bentona (2013-07-15 22:46:33+00:00)
Title: There should be a public method to retrieve a new access token from refresh token

I'm querying an API using auth for many different users in succession, I need to be able to cache access tokens so I'm not constantly sending refresh requests. I'm not sure if this is optimal at all, maybe refreshToken_ should just be changed into a public method, but this was my quick solution.