Saving LinkedIn OAuth data in a callback action (Rails controller, Devise, Omniauth).

omniauth_callbacks_controller.rb

# in your routes.rb:
# devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks" }
#
# and view:
# link_to("Connect to LinkedIn", user_omniauth_authorize_path(:linked_in))

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController

  def linkedin
    omniauth_hash = env["omniauth.auth"]
    current_user.create_linkedin_connection(
      :token  => omniauth_hash["extra"]["access_token"].token,
      :secret => omniauth_hash["extra"]["access_token"].secret,
      :uid    => omniauth_hash["uid"]
    )
    redirect_to root_path, :notice => "You've successfully connected your LinkedIn account."
  end
end