Ruby Sinatra を使ってGoogle認証をする（実験編）

config.ru

require 'rubygems'
require 'bundler'
require 'sinatra'
require 'omniauth'
require 'omniauth-google-oauth2'
require './app.rb'

use Rack::Session::Cookie, secret: ENV['RACK_COOKIE_SECRET']

use OmniAuth::Builder do
  provider :google_oauth2, ENV['GOOGLE_KEY'], ENV['GOOGLE_SECRET'], access_type: 'offline', prompt: 'consent', provider_ignores_state: true, scope: 'email,profile'
end

  configure do
    set :raise_errors, true
    set :show_exceptions, false
  end
  enable :logging

run App.new