A proxy setting in getToken

[jojonki]

I faced a trouble of setting proxy during getting token. When this library tries to get token, it looks it doesn't consider proxy setting. My code works if I set a proxy as a request property directly.
https://github.com/google/google-auth-library-nodejs/blob/master/lib/auth/oauth2client.js#L143

Or are there any ways to setting proxy even if trying to getting tokens?

[runk]

Stuck at the same issue.

You can set HTTP_PROXY and HTTPS_PROXY environment vars to corresponding value. Those vars are recognized by request module which google-auth-library-nodejs uses internally

[JustinBeckwith]

Turns out this works out of the box via the HTTP_PROXY and HTTPS_PROXY env vars :) Adding docs around that in #221.