Facebook + Ruby + OAuth.rb

require 'fbgraph'

client = FBGraph::Client.new(:client_id => 'client_id',:secret_id =>'secret_id')

photos = client.selection.me.photos.until(Time.now.to_s).since(3.days.ago).limit(10).info

client.selection.post('id').comments.params(:message => 'Hola').publish!

@friends = client.selection.me.friends.info!

@friends[:data].each do |friend|
  #   
end

client.selection.user(current_account.fb_id).feed.publish!
(:message => "Mi mensaje , :name =>"El nombre",:link=>"Un link",:description=>"Una description", :picture => "unaimagen.png")