How to get access token from GoogleCredential?

Question

I am trying to get an access token to use the Google Play Android Developer API, and I got this far using the Google API Java Client documentation example:

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Answer 1

Got it. You have to call credential.refreshToken() before credential.getAccessToken(). It doesn't say this anywhere in the documentation but that's what does it.

credential.refreshToken();
accessToken = credential.getAccessToken();