Introduction to Facebook Python API

Introduction to Facebook Python API Social Network and Applications, 2011 LittleQ, The Department of Computer Science, NCCU f Introduction to Facebook PY API

Objectives • Learn the concepts of Facebook API • Learn how to play with Facebook Graph API f Introduction to Facebook PY API

Core Topics • Facebook Developers website • Graph API • Facebook Python SDK • Resources f Introduction to Facebook PY API

Facebook Developers • Provide you online documentations • Forum for discussion • Management of your applications f Introduction to Facebook PY API

Where is it? f Introduction to Facebook PY API

Social Plugins • Like Button, Send Button, Login Button • Comments • Your Friends • Activity Feed, Live Stream f Introduction to Facebook PY API

Is That What You Want? f Introduction to Facebook PY API

Graph API Response Data Aggregate Information Access Token Request Data Application Graph API Facebook Database • Facebook’s core • Social graph • Connections f Introduction to Facebook PY API

Graph Model • Composed of objects and connections • Identify entities and relationships by id • Data will be stored with smallest spaces and keep being updated f Introduction to Facebook PY API

Object Model information from graph API without access token f Introduction to Facebook PY API

Graph Model information from graph API with access token f Introduction to Facebook PY API

Connection Model • All of the object in the Facebook social graph are connected to each other via connections • Objects are just like entities while connections are like relationship • For example, users, pages and groups are objects and likes, friends and feeds are connections f Introduction to Facebook PY API

Connection Model f Introduction to Facebook PY API

Access to Graph • HTTP(S) Graph API • SDKs ‣ Javascript SDK ‣ iOS SDK ‣ Android SDK ‣ PHP SDK ‣ Python SDK f Introduction to Facebook PY API

HTTP(S) Graph API • RESTful HTTP request & response • Response data-type: JSON • Access URL: graph.facebook.com f Introduction to Facebook PY API

HTTP(S) Graph API http://graph.facebook.com/<id-‐or-‐username> • Request information of an object with id or username • id-or-username can be “me” with the access token f Introduction to Facebook PY API

HTTP(S) Graph API http://graph.facebook.com/littleq0903 Result: { "id": "1681390745", "name": "Colin Su", "first_name": "Colin", "last_name": "Su", "link": "https://www.facebook.com/littleq0903", "username": "littleq0903", "gender": "male", "locale": "en_US" } f Introduction to Facebook PY API

Access Token • A long string stands for the authentication of users • Temporary • The information behind the access token ‣ user id ‣ app id ‣ expired time ‣ secret f Introduction to Facebook PY API

Get Access Token • GetMyAccess http://getmyaccess.heroku.com • It requires a permission called “oﬄine_access”, so this token can be valid for a long time f Introduction to Facebook PY API

HTTP(S) Graph API • Access token should be transferred as a HTTP GET variable http://graph.facebook.com/littleq0903?access_token=... • More information: developers.facebook.com/docs/reference/ api/ f Introduction to Facebook PY API

Python SDK • Let you access all features of the Graph API • That’s all, let’s play! f Introduction to Facebook PY API

Python SDK • https://github.com/facebook/python-sdk • Designed to support Graph API and FB Javascript SDK (You will learn in the future) f Introduction to Facebook PY API

Graph • Depends your access token • Everyone will have their own graph, could be unique f Introduction to Facebook PY API

Graph API Class • Fetch the graph by implement it import facebook graph = facebook.GraphAPI() user = graph.get_object(“littleq0903”) f Introduction to Facebook PY API

Authentication my_profile = graph.get_object(“me”) • Graph can be implemented with an access token graph = GraphAPI(ACCESS_TOKEN) • And the perspective of the graph will be diﬀerent f Introduction to Facebook PY API

Graph Methods • get_object, get_objects • get_connections • put_object • put_wall_post, put_comment, put_like • delete_object f Introduction to Facebook PY API

Demo f Introduction to Facebook PY API

Homework • Fetch a kind of data on the FB Graph • Do some statistics on it • Don’t Copy from others f Introduction to Facebook PY API

Q&A Time Thanks for your listening f Introduction to Facebook PY API

Introduction to Facebook Python API

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