OmniAuth Google OAuth2 Access Token Strategy

Google OAuth2 Access Token Strategy in OmniAuth 1.0.

This strategy is fully inspired by omniauth-facebook-access-token.

Find your API key at: https://code.google.com/apis/console/

Read the Google docs for more details: https://developers.google.com/accounts/docs/OAuth2

Add to your Gemfile:

gem 'omniauth-google-oauth2-access-token'

Then bundle install.

OmniAuth::Strategies::GoogleOauth2AccessToken is simply a Rack middleware. Find the detailed instructions in OmniAuth 1.0 docs: https://github.com/intridea/omniauth. A brief example, using the middleware in a Rails application at config/initializers/omniauth.rb:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :google_oauth2_access_token, ENV['GOOGLE_CLIENT_KEY'], ENV['GOOGLE_CLIENT_SECRET']
end

Request the access_token to the provider, then login via ajax GET/POST call to /auth/google_oauth2_access_token/callback while providing access_token parameter.

Copyright (c) 2013 by Masaaki Isozu

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