使用omniauth-google-oauth2 gem从auth哈希中检索first_name和last_name

Question

I have a rails 4.2.7 app setup using the omniauth-google-oauth2 gem, and I would like to retrieve the first_name and last_name from the auth hash.

I was able to do this with the omniauth-facebook gem by modifying the devise.rb to look like the following,

devise.rb

# Omniauth / Oauth2 settings
  callback_url = if Rails.env == "development"
   ENV['FB_CALLBACK']
  else
    ENV['FB_CALLBACK_PROD']
  end

  config.omniauth :facebook, ENV['FACEBOOK_KEY'], ENV['FACEBOOK_SECRET'], callback_url: callback_url,
   :scope => 'email',
   :info_fields => 'email, first_name, last_name'
  # Google - OmniAuth
  require 'omniauth-google-oauth2'
  config.omniauth :google_oauth2, ENV["GOOGLE_CLIENT_ID"], ENV["GOOGLE_CLIENT_SECRET"]

However, I can't seem to figure out how to retrieve the first_name / last_name using omniauth-google-oauth2 . Any help would greatly be appreciated.

Answer 1

@chris from omniauth-google-oauth2, in your callback controller action,

auth = request.env['omniauth.auth']

request.env['omniauth.auth'] will contain a hash of users' auth session, with which basic user info are persisted in info ie auth["info"]

auth
====
{
.....
"info"=>
  {"name"=>"Username",
   "email"=>"Useremail",
   "first_name"=>"firstname",
   "last_name"=>"lastname",
   "image"=> "image_url",
   "urls"=>{"Google"=>"https://plus.google.com/xxxxxxxxxxxxxxxxx"}
  }
....
}