CODEWITHSUNDEEP
ruby-on-railsfacebook
hrsetyono
hrsetyono

Reputation: 4464

Rails 4 - Get Facebook cookies from Koala gem?

I'm making a Rails 4 site for Facebook Canvas using Koala gem. I tried to follow this Koala on Rails guide but always result with nil in the facebook_token.

Here's my controller (the same as in the guide):

# app/controllers/application_controller.rb
def facebook_cookies
    @facebook_cookies ||= Koala::Facebook::OAuth.new.get_user_info_from_cookie(cookies)
end

# app/controllers/photos_controller.rb
def index
  ...
  @access_token = facebook_cookies['access_token']
  @graph = Koala::Facebook::GraphAPI.new(@access_token)
  ...
end

I got this error on the line that calls facebook_cookies

undefined method `[]' for nil:NilClass

I figure that when I call .get_user_info_from_cookie(cookies), the cookies is never declared before.

The doc doesn't mention anything about how to obtain that variable. Any help?

Thanks

Upvotes: 2

Views: 248

Answers (1)

anny_goerl
anny_goerl

Reputation: 642

I had the same problem. It turned out, that the cookies have never been set.

For setting the cookies, you need the Facebook Javascript SDK

afterwards you need something like this in your JS:

window.fbAsyncInit = function() {
  return FB.init({
    appId: YOUR_FACEBOOK_APP_ID,
    cookie: true
  });
};

Upvotes: 2

Related Questions