permission denied while using fb_graph rails3

SA

I have a application written in RubyonRails and I want to make him post periodically on facebook fan page.

I used fb_graph gem to do that.

I created my facebook app and I get my Access Token to use it but when I use this peace of code

me = FbGraph::User.me(ACCESS_TOKEN)
me.feed!(
:message => 'Updating via FbGraph',
:picture => 'https://graph.facebook.com/matake/picture',
:link => 'http://github.com/nov/fb_graph',
:name => 'FbGraph',
:de开发者_开发百科scription => 'A Ruby wrapper for Facebook Graph API'
)

I get permission denied error message.

How can I get the permission to post on my fan page wall?

Thanks in advance.

---

Link to the docs:

http://developers.facebook.com/docs/authentication/

There are several flows, but essentially, you provide a link for the client to authenticate at facebook:

https://www.facebook.com/dialog/oauth?client_id=YOUR_APP_ID&redirect_uri=YOUR_U‌​RL&scope=publish_stream,manage_pages

After authing this redirects to a URL on your site prepared to handle the param code, which you then turn around and send back to facebook for your access_token, which you provide to fb_graph.

https://graph.facebook.com/oauth/access_token?client_id=YOUR_APP_ID&redirect_ur‌​i=YOUR_URLclient_secret=YOUR_APP_SECRET&code=CODE

There are other permissions as well, so you might want to check the facebook docs to see if there are more you need.

Facebook uses OAuth 2 for auth, and there are several ruby gems you can use to facilitate this process slightly, including the oauth2 gem.

---

The app ID you specified must be wrong. please cross check that. A sample appID looks like this

  APP_ID="162221007183726"

Also check whether you have used any call back url. The url should point to a server. Your cannot use your localhost/ local IP there.

A similar nice rails plugin for Facebook app using Rails3 is Koala gem

https://github.com/arsduo/koala/wiki/Koala-on-Rails

http://blog.twoalex.com/2010/05/03/introducing-koala-a-new-gem-for-facebooks-new-graph-api/