FbGraph
A full-stack Facebook Graph API wrapper in Ruby.
Installation
gem install fb_graph
Resources
-
View RDoc on RDoc.info (rdoc.info/github/nov/fb_graph)
-
View Source on GitHub (github.com/nov/fb_graph)
-
Report Issues on GitHub (github.com/nov/fb_graph/issues)
-
Q&A on Google Groups (groups.google.com/group/fb_graph)
-
Facebook fan page (www.facebook.com/pages/FbGraph/117513961602338)
Examples
Now FbGraph supports all objects listed here: developers.facebook.com/docs/reference/api/ Almost all connections for each object are also supported. (Private message connections are not supported yet)
Plus, you can play an Rails sample app here. fbgraphsample.heroku.com/
GET
Basic Objects
user = FbGraph::User.me(ACCESS_TOKEN)
user = FbGraph::User.fetch('matake')
user.name # => 'Nov Matake'
user.picture # => 'https://graph.facebook.com/matake/picture'
# fb_graph doesn't access to Graph API until you call "fetch"
user = FbGraph::User.new('matake', :access_token => YOUR_ACCESS_TOKEN)
user.identifier # => "matake"
user.name # => nil
user.link # => nil
user.fetch
user.name # => "Nov Matake"
user.description # => "http://www.facebook.com/matake"
page = FbGraph::Page.fetch('smartfmteam')
page.name # => 'smart.fm'
page.picture # => 'https://graph.facebook.com/smart.fm/picture'
:
Connections
# Public connections
user = FbGraph::User.fetch('matake')
user.feed
user.posts
user.friends
user.tagged
:
# Private connections requires "access_token"
FbGraph::User.new('matake').friends # => raise FbGraph::Unauthorized
user = FbGraph::User.fetch('matake', :access_token => ACCESS_TOKEN)
user.albums
user.events
user.friends
user.likes
:
# "home" connection is only available for "me"
me = User.new('me', :access_token => ACCESS_TOKEN)
me.home
:
Search
# all objects
FbGraph::Searchable.search("FbGraph") # => Array of Hash
# specify type
FbGraph::Page.search("FbGraph") # => Array of FbGraph::Page
FbGraph::User.search("matake", :access_token => ACCESS_TOKEN) # => Array of FbGraph::User
Pagination
# collection
user = FbGraph::User.new('matake', :access_token => ACCESS_TOKEN)
likes = user.likes # => Array of FbGraph::Like
likes.next # => Array of FbGraph::Like (next page)
likes.previous # => Array of FbGraph::Like (previous page)
likes.collection.next # => Hash for pagination options (ex. {"limit"=>"25", "until"=>"2010-08-08T03:17:21+0000"})
likes.collection.previous # => Hash for pagination options (ex. {"limit"=>"25", "since"=>"2010-08-08T06:28:20+0000"})
user.likes(likes.collection.next) # => same with likes.next
user.likes(likes.collection.previous) # => same with likes.previous
# search results
results = FbGraph::Page.search("FbGraph") # => Array of FbGraph::Page
results.next # => Array of FbGraph::Page (next page)
results.previous # => Array of FbGraph::Page (next page)
results.klass # => FbGraph::Page
results.collection.next # => Hash for pagination options (ex. {"limit"=>"25", "until"=>"2010-08-08T03:17:21+0000"})
results.collection.previous # => Hash for pagination options (ex. {"limit"=>"25", "since"=>"2010-08-08T06:28:20+0000"})
results.klass.search(results.query, results.collection.next) # => same with results.next
results.klass.search(results.query, results.collection.previous) # => same with results.previous
POST
Update status (wall post)
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',
:description => 'A Ruby wrapper for Facebook Graph API'
)
Post a like/comment to a post
post = FbGraph::Page.new(117513961602338).feed.first
bool = post.like!(
:access_token => ACCESS_TOKEN
)
comment = post.comment!(
:access_token => ACCESS_TOKEN,
:message => 'Hey, I\'m testing you!'
)
Post a note
page = FbGraph::Page.new(117513961602338)
note = page.note!(
:access_token => ACCESS_TOKEN,
:subject => 'testing',
:message => 'Hey, I\'m testing you!'
)
Post a link
me = FbGraph::User.me(ACCESS_TOKEN)
link = me.link!(
:link => 'http://github.com/nov/fb_graph',
:message => 'A Ruby wrapper for Facebook Graph API.'
)
Create Event, respond to it
me = FbGraph::User.me(ACCESS_TOKEN)
event = me.event!(
:name => 'FbGraph test event',
:start_time => 1.week.from_now.to_i,
:end_time => 2.week.from_now.to_i
)
bool = event.attending!(
:access_token => ACCESS_TOKEN
)
bool = event.maybe!(
:access_token => ACCESS_TOKEN
)
bool = event.declined!(
:access_token => ACCESS_TOKEN
)
Create an album
me = FbGraph::User.me(ACCESS_TOKEN)
album = me.album!(
:name => 'FbGraph test',
:message => 'test test test'
) # => now facebook Graph API returns weird response for this call
Upload a photo to an album
me = FbGraph::User.me(ACCESS_TOKEN)
album = me.albums.first
album.photo!(
:access_token => ACCESS_TOKEN,
:image => File.new('/Users/nov/Desktop/nov.gif', 'rb'), # 'rb' is needed only on windows
:message => 'Hello, where is photo?'
)
DELETE
Delete an object
post = FbGraph::Page.new(117513961602338).feed.first
bool = post.like!(
:access_token => ACCESS_TOKEN
)
comment = post.comment!(
:access_token => ACCESS_TOKEN,
:message => 'Hey, I\'m testing you!'
)
comment.destroy(:access_token => ACCESS_TOKEN)
post.unlike!(:access_token => ACCESS_TOKEN)
post.destroy(:access_token => ACCESS_TOKEN)
Authentication
Both Facebook JavaScript SDK and normal OAuth2 flow is supported. Below I show simple sample code. You can also see github.com/nov/fb_graph_sample for more details Rails3 sample application.
JavaScript SDK
fb_auth = FbGraph::Auth.new(YOUR_APP_ID, YOUR_APPLICATION_SECRET)
fb_auth.client # => OAuth2::Client
# get Facebook's auth cookie in advance using their JS SDK
fb_auth.()
fb_auth.access_token # => OAuth2::AccessToken
fb_auth.user # => FbGraph::User (only basic attributes)
fb_auth.user.fetch # => fetch more details
Normal OAuth2 Flow
# redirect user to facebook
redirect_to fb_auth.client.web_server.(
:redirect_uri => "http://your.client.com/facebook/callback",
:scope => "email,read_stream,offline_access"
)
# in callback
fb_auth.client.web_server.get_access_token(
params[:code],
:redirect_uri => callback_facebook_url
) # => OAuth2::AccessToken
FbGraph::User.me(access_token).fetch # => fetch user
Analytics
app = FbGraph::Application.new(YOUR_APP_ID, :secret => YOUR_APPLICATION_SECRET)
app.insights # => Array of FbGraph::Insight
Test User
Not tested well yet. Sample is here. gist.github.com/752974
FQL
Not tested well yet. Sample is here. gist.github.com/752914
Documents
Currently fb_graph isn’t so well documented.
I’m continuously updating RDoc now, but writing all documents in English is heavy task for me.
Please see RDoc.info (rdoc.info/github/nov/fb_graph), and if the document is missing or hard to understand, please contact me on github.
I’ll add more documents or sample code.
Objects
Connections
Note on Patches/Pull Requests
-
Fork the project.
-
Make your feature addition or bug fix.
-
Add tests for it. This is important so I don’t break it in a future version unintentionally.
-
Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
-
Send me a pull request. Bonus points for topic branches.
Copyright
Copyright © 2010 nov matake. See LICENSE for details.