Open Social Intro Facebookmeetup

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OpenSocial Developer Update

Chris SchalkDeveloper Advocate

July 15, 2008

Agenda

• Quick OpenSocial Intro

• OpenSocial API Update

• OpenSocial Container Update

• Google Friend Connect

Agenda

OpenSocial High Level Details

• A set of APIs that operate in standard Webtechnologies

• HTML, JavaScript, CSS, Ajax, REST …)

• A reference Implementation: Shindig• Apache Open Source Project• Java or PHP

• Multiple OpenSocial “container” partners• hi5, MySpace, orkut, imeem, iGoogle …

• A huge community of developers• Even bigger community of users!

Too many platforms!

Standards based

OpenSocial

Write once… Deploy everywhere

Single PlatformCooooool!

A sample of OpenSocial partners

®friendster

OpenSocial Numbers

• 260 days old

• 275,000,000+ users

• 66,000,000+ installs

• 2,000+ apps

• 20,000+ developers

• 10,000,000 daily app users

OpenSocial Community

OpenSocial Client APIs - A Quick Refresher

• JavaScript API - for browser based client development• Standard Web development technologies

• HTML + Javascript, CSS, AJAX

• Can integrate with 3rd party servers• PHP, Python, Perl, Java, C/C++

• RESTful API - for server based client development• Based on Atom publishing protocol• Data transfer is Atom or JSON• More on RESTful API later…

JavaScript OpenSocial Applications = “gadgets++”

• If you know how to develop gadgets, you know how todevelop JavaScript OpenSocial applications!

• Follows same approach as gadgets• JavaScript/HTML/CSS embedded in an XML

document• XML document containing gadget is hosted on the

Internet• OpenSocial applications are “gadgets++”

• Gadgets development, but with additional Socialcapabilities

OpenSocial application in action

Gadget using JavaScript Client API communicates with OpenSocial server

OpenSocialServer

browser

Gadget XML SourceGadget XML Source

Understanding the OpenSocial JavaScript API

• People & Friends• Access friends information programmatically

• Activities• See what you’re friends are up to• Share what you are doing

• Persistence• Provide state without a server• Share data with your friends

The core OpenSocial services:

OpenSocial JavaScript APIs overview

• Gadgets Core Utilities handling gadget preferences, IO, JSON

• Gadgets Feature-Specific Utilities for working with flash, window management,tabs, rpc, MiniMessage

Additional Gadgets services:

People & Friends Example

An example JavaScript function to request viewer andfriends info

function getFriendData() { var req = opensocial.newDataRequest(); req.add(req.newFetchPersonRequest(VIEWER),'viewer'); req.add(req.newFetchPeopleRequest(VIEWER_FRIENDS), 'viewerFriends'); req.send(onLoadFriends);}

People & Friends Example

Callback function for returned friend data

function onLoadFriends(resp) { var viewer = resp.get('viewer').getData(); var viewerFriends = resp.get('viewerFriends').getData(); var html = 'Friends of ' + viewer.getDisplayName() + ‘:<br><ul>’;

viewerFriends.each(function(person) { html += '<li>' + person.getDisplayName()+'</li>';}); html += '</ul>'; document.getElementById('friends').innerHTML = html;}

Activities Example

Posting an Activity

function postActivity(text) { var params = {}; params[opensocial.Activity.Field.TITLE] = text; var activity = opensocial.newActivity(params); opensocial.requestCreateActivity(activity, opensocial.CreateActivityPriority.HIGH, callback);}

postActivity("This is a sample activity, created at " + new Date().toString())}

Persistence Example

Storing persisted data

function populateMyAppData() { var req = opensocial.newDataRequest(); var data1 = Math.random() * 5; var data2 = Math.random() * 100;

req.add(req.newUpdatePersonAppDataRequest("VIEWER", "AppField1", data1)); req.add(req.newUpdatePersonAppDataRequest("VIEWER", "AppField2", data2)); req.send(requestMyData);}

Persistence Example

Fetching persisted data

function requestMyData() { var req = opensocial.newDataRequest(); var fields = ["AppField1", "AppField2"];

req.add(req.newFetchPersonRequest( opensocial.DataRequest.PersonId.VIEWER), "viewer"); req.add(req.newFetchPersonAppDataRequest("VIEWER", fields), "viewer_data"); req.send(handleReturnedData);}

Agenda

OpenSocial v0.8 has been defined!

• Latest evolution of OpenSocial as defined by theOpenSocial development community

• Updated JavaScript API• Now contains a RESTful API!

• Shindig supports v0.8 today!• hi5 almost done with their support• orkut currently working on their implementation• Other containers also working on 0.8

• Specification is here:http://www.opensocial.org/Technical-Resources/opensocial-spec-v08

OpenSocial v0.8 REST API

• Access OpenSocial data without JavaScript

– Use simple REST calls instead

– Does not require gadget container

– Allows server-to-server communication

• Client libraries under development (open source):

– Java

– PHP

– Python

– <your favorite language here?>

0.8 Compatibility and Migration

• Most containers will continue to support 0.7 apps with nochanges.

• Most 0.8 changes are backwards compatible.

• To use new 0.8 features, you might have to update smallamounts of existing 0.7 app code.

Beyond 0.8 - OpenSocial Templating Proposal

• Goal:

– Enable a faster development experience that is both secure andefficient

Core principles:

• Client-side and server-side processing

• Standard set of tags with extensibility model

– Example: <os:ShowPerson>

• http://groups.google.com/group/opensocial-and-gadgets-spec/web/opensocial-templates

– Demo: http://ostemplates-demo.appspot.com/

To follow the progress of the Spec…

http://groups.google.com/group/opensocial-and-gadgets-spec

Don’t worry, I’ll share the slides with you!

Additional OpenSocial application development resources

• OpenSocial documentation, FAQ, Blog

• http://code.google.com/opensocial

• Further development resources

• http://code.google.com/p/opensocial-resources

• Development sandboxes available for:

• orkut, hi5, MySpace, imeem, Netlog

Agenda

• 275+ million users

• 88 million installs

OpenSocial Development

Current live OpenSocial developer sandboxes

• 2400+ apps

• 20,000+ developers

Download your own “Container” - Shindig

• OpenSocial Reference Implementation

• Parallels versions in Java and PHP

• More languages to come…

• Can use as your own “sandbox” for testing or can

build your own social network site

• Shindig Contains• Gadget Server

– Renders gadget XML as HTML/JS/CSS

• OpenSocial Data Server– RESTful API server (in-progress)

Shindig Architecture

• Gadget Server

• OpenSocial Data Server

Yoursite.com

GadgetGadgetServer

OpenSocialDataServer

Shindig

Shindig Details

• Strong open source community

• High quality production-ready code

• Update easily as OpenSocial evolves

• Built in security using OAuth

• Fully compliant with OpenSocial v0.7 and v0.8

• Shindig is language neutral(Java, PHP today, more to follow…)

Demonstration: Getting familiar with Shindig

Interacting with the REST API using Shindig

• Use simple REST calls instead!

– Does not require JavaScript

– Allows server-to-server communication

• Easily integrate with other server-side technologies:Java, PHP, Perl

Question: Why would you need a RESTful API?

Answer: What if you wanted to access OpenSocial data from a server? (Outside of a browser/JavaScript environment)

Shindig REST Architecture

• Gadget Server

• OpenSocial Data Server

• REST Server (in progress)

Yoursite.comGadget Server

OpenSocialDataServer

Shindig

OpenSocialREST Server

JSON or ATOM

Java | PHP | Python C++ | Perl …

Demonstration: A quick look at the REST api

Shindig success at hi5

• Big Traffic

• 10k req/sec Edge

• 6k req/sec Origin

• Hundreds of Developers

• 800+ Apps

• 1 Billion hits/day

… on 40 Shindig servers

Agenda

Google Friend Connect

• Personal Web sites (e.g.blogs) have readers, contacts,

connections for a social graph

• Can small personal websites host OpenSocial

applications?

Problem: blogger’s/Webmasters typically lack

development resources!

Solution: Google Friend Connect solves this problem!

A hosted OpenSocial container solution

ingridmichaelson.com on Friend Connect

My new blog on Friend Connect

Demonstration: Google Friend Connect on my blog

•Users• … more ways to do more things with my friends

•Site owners•… more (and more engaged) traffic for my site

•App developers•... more reach for my apps

• Sign up for the preview release!

http://google.com/friendconnect/

Get Involved!

Homepage & specification:• http://www.opensocial.org

Get on the forums:• http://groups.google.com/group/opensocial

Subscribe to the Shindig mailing list:• shindig-dev-subscribe@incubator.apache.org

Help shape the specification:• http://groups.google.com/group/opensocial-and-gadgets-spec/

Templates:• http://groups.google.com/group/opensocial-and-gadgets-spec/web/opensocial-templates

Check out Shindig:• http://incubator.apache.org/shindig

Some parting words from Jia Shen

Founder of RockYou…

"OpenSocial has allowed a vast number of social networks to open up sooner and faster than if they did it on their own. “

“It has allowed us to build on a single code base and deploy it on an ever growing list of platforms with great ease!"

OpenSocial

Q&AI’ll upload my slides to SlideShare.NetAlso be sure to stop by: http://chrisschalk.com/blog

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