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sinbook: simple sinatra facebook extension in 300 lines of ruby
(c) 2009 Aman Gupta (tmm1)
=== Usage
require 'sinbook'
require 'sinatra'
facebook do
api_key '4579...cbb0'
secret '5106...2342'
app_id 81747826609
url 'http://apps.facebook.com/myappname'
callback 'http://myappserver.com'
end
get '/' do
fb.require_login!
"Hi <fb:name uid=#{fb[:user]} useyou=false />!"
end
=== Features
sinbook provides a simple `facebook` helper (also aliased to `fb`).
>> fb.valid?
=> true # valid (authenticated) request from facebook's servers
>> pp fb.params
{
:logged_out_facebook => false, # request came from a user logged into facebook
:added => true, # user is logged into our app
:user => 1234, # user's facebook uid
:friends => [1,2,3], # list of user's friends
...
}
>> fb[:user] # [] is aliased to params[]
=> 1234
>> fb.callback
=> 'http://apps.facebook.com/myappname'
>> fb.callback('/homepage')
=> 'http://apps.facebook.com/myappname/homepage'
>> fb.url('/images/static.gif')
=> 'http://myappserver.com/images/static.gif'
>> fb.appurl
=> 'http://apps.facebook.com/add.php?api_key=4579...cbb0'
>> fb.addurl
=> 'http://www.facebook.com/apps/application.php?id=81747826609'
>> fb.redirect('/welcome') # redirect using an fb:redirect tag
>> fb.require_login! # redirect to addurl page unless logged in
The helper can also be used to make API calls
>> fb.users.getInfo :uid => 1234, :fields => [:name]
=> [{'uid' => 1234, 'name' => 'Frank Sinatra'}]
>> fb.groups.get :uid => 1234
=> [{'name' => 'Sinatra Users'}]
>> fb.profile.setFBML :profile => 'hello world'
=> true
>> fb.profile.getFBML
=> 'hello world'
=== TODO
* Switch to yajl-ruby for json parsing
* Split out facebook api client so it can be used outside sinatra
* Add a batch mode for api calls:
groups, pics = fb.batch do |b|
b.groups.get :uid => 123
b.users.getInfo :uids => 123, :fields => [:pic_square]
end