Facebook Graph Ruby API implementation with Ruby magic (graph.facebook.com).
sudo gem install fgraph
Gem Plugin installation:
sudo gem install fgraph # Edit [RAILS_ROOT]/config/environment.rb config.gem 'fgraph', :version => ">=0.2.0" # Edit [RAILS_ROOT]/Rakefile require 'tasks/fgraph' # Create fgraph.yml config in [RAILS_ROOT]/config rake fgraph:setup
Normal Plugin Installation:
script/plugin install http://github.com/jugend/fgraph.git
sudo gem install cheat cheat fbgraph
# Users: https://graph.facebook.com/btaylor (Bret Taylor) FGraph.object('btaylor') # Pages: https://graph.facebook.com/cocacola (Coca-Cola page) FGraph.object('cocacola') # Fields selection with metadata FGraph.object('btaylor', :fields => 'id,name,picture', :metadata => 1) # Page photos FGraph.object('/cocacola/photos') FGraph.object_photos('cocacola') # Passing object hash as id friend = { 'name' => 'Mark Zuckerberg', 'id' => '4'} friend_details = FGraph.object(friend) # Current user: https://graph.facebook.com/me?access_token=... FGraph.me(:access_token => '...') # Current user's friends: https://graph.facebook.com/me/friends?access_token=... FGraph.me('friends', :access_token => '...') FGraph.me_friends(:access_token => '...')
# Multiple users select: https://graph.facebook.com?ids=arjun,vernal FGraph.objects('arjun', 'herryanto') # Filter fields: https://graph.facebook.com?ids=arjun,vernal&fields=id,name,picture FGraph.objects('arjun', 'herryanto', :fields => 'id,name,picture') # Passing hash objects FGraph.objects([{:name => 'Arjun Banker', :id => 'arjun'}, {:name => 'Herryanto Siatono', :id => 'herryanto'}])
friends = FGraph.me_friends(:limit => 5, :access_token => '...') friends.each do |friend| puts friend['name'] puts friend['id'] end # Other convenient methods friends.next? friends.next_url friends.next_options
OAuth authorization URL:
# https://graph.facebook.com/oauth/authorize? # client_id=...& # redirect_uri=http://www.example.com/oauth_redirect& # scope=publish_stream FGraph.oauth_authorize_url('[client id]', 'http://www.example.com/oauth_redirect', :scope => 'publish_stream')
OAuth Access Token:
# https://graph.facebook.com/oauth/access_token?
# client_id=...&
# client_secret=...&
# redirect_uri=http://www.example.com/oauth_redirect&
# code=...
FGraph.oauth_access_token('[client id]', '[client secret]',
:redirect_uri => ''http://www.example.com/oauth_redirect',
:code => '[authorization code]')
OAuth Application Access Token, required to access application anlytics data:
# https://graph.facebook.com/oauth/access_token? # client_id=...& # client_secret=...& # type=client_cred FGraph.oauth_access_token('[client id]', '[client secret]', :type => 'client_cred')
# Post to user's feed. # curl -F 'access_token=...' \ # -F 'message=Hello, Arjun. I like this new API.' \ # https://graph.facebook.com/arjun/feed FGraph.publish('arjun/feed', :message => 'Hello, Arjun. I like this n ew API.', :access_token => '...') FGraph.publish_feed('arjun', :message => '...', :access_token => '... ') FGraph.publish_feed('me', :message => '...', :access_token => '...')
# DELETE https://graph.facebook.com/ID?access_token=... HTTP/1.1 FGraph.remove('[ID]') FGraph.remove('[ID]/likes') FGraph.remove_likes('[ID]')
# https://graph.facebook.com/search?q=watermelon&type=post FGraph.search('watermelon', :type => 'post') FGraph.search_post('watermelon')
# https://graph.facebook.com/client_id/insights?access_token=... FGraph.insights('[client_id]', '[app_access_token]') # https://graph.facebook.com/client_id/insights/application_api_call/day?access_token=... FGraph.insights('[client_id]', '[app_access_token]', :metric_path => 'application_api_call/day')
# Initialize with default options fg_client = FGraph::Client.new(:client_id => '...', :client_secret => '...') fg_client.oauth_authorize_url('[redirect uri]', :scope => 'publish_stream') fg_client.oauth_access_token('[redirect uri]', '[authorization code]') # Intialize with access token fg_client = FGraph::Client.new(:access_token => '...') fg_client.me fg.client.publish_feed('herryanto', :message => 'Cool!')
-
limit- max no of records -
offset- offset -
until- since (a unix timestamp or any date accepted by strtotime, e.g. yesterday)
Sample codes:
<%= fgraph_javascript_init_tag %>
<script type="text/javascript">
FB.Event.subscribe('auth.sessionChange', function(response) {
if (response.session) {
// A user has logged in, and a new cookie has been saved
} else {
// The user has logged out, and the cookie has been cleared
}
});
</script>
<!-- Facebook Login Button -->
<fb:login-button autologoutlink="true" scope="email,publish_stream"></fb:login-button>
<% if fgraph_logged_in? %>
<br>Hello <%= fgraph_user['name'] %>,
<br><%= fgraph_image_tag(fgraph_user, 'large') %>
<% end %>
For Asynchronous load, use window.afterFbAsyncInit:
<script type="text/javascript">
window.afterFbAsyncInit = function() {
FB.Event.subscribe('auth.sessionChange', function(response) {
if (response.session) {
// A user has logged in, and a new cookie has been saved
} else {
// The user has logged out, and the cookie has been cleared
}
});
}
</script>
<%= fgraph_javascript_init_tag :async => true %>
Facebook invalidates session token when you log out from facebook.com, and fgraph_logged_in? does not check if the session is still valid on Facebook server. The trick is you have to catch FGraph::OAuthError in ApplicationController:
rescue_from FGraph::OAuthError do # Delete existing invalid cookies cookies.delete "fbs_#{FGraph.config['app_id']}" # Redirect to referrer page redirect_to request.env['REQUEST_PATH'] end
(The MIT License)
Copyright © 2010 Herryanto Siatono
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ‘Software’), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ‘AS IS’, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.