oAuth instructions

[Michael]

Awesome gem, thanks a lot for your hard work.

I struggle to connect through oAuth, would you mind giving detailed step by step instructions on what to do to obtain the oauth_access_token_for_user?

[Alvin Liang]

(Note, I didn't test this too much, it's from memory).

Make sure your app is set up properly, and that you've enabled the Contacts API in the Google Developers Console at https://console.developers.google.com/project. Then try this:

CLIENT_ID = '?????.apps.googleusercontent.com'
CLIENT_SECRET = 'your_secret'
REDIRECT_URI = 'url_you_registered_with_google'
client = OAuth2::Client.new(CLIENT_ID, CLIENT_SECRET, 
           site: 'https://accounts.google.com',
           token_url: '/o/oauth2/token',
           authorize_url: '/o/oauth2/auth')
url = client.auth_code.authorize_url(scope: "https://www.google.com/m8/feeds",
           redirect_uri: REDIRECT_URI)

Then visit url in your browser and log in to Google. The url you are redirected to afterwards will contain the token in the parameter code. It will look like this (not actual code to run, just an interpolation example):

redirect_url = "#{REDIRECT_URI}?code=#{code}"

Parse the code from the redirect url, then construct an API client as I describe in the docs.

token = client.auth_code.get_token(code, :redirect_uri => REDIRECT_URI)
google_contacts_user = GoogleContactsApi::User.new(token)

[Alvin Liang]

Since I haven't heard back from you I'm going to close this issue

[Michael]

Thanks Aliang for explaining and closing the issue. Sorry for late reply, I'm on a holiday.