OpenSocial

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OpenSocial

• Creating Orkut Applications

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Before We Start

• If you have any questions, please don't hesitate
  to ask.
• During presentation we will create a sample
  application and run at Orkut.
• This session is not about OpenSocial
  container/Shindig.

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About Me

• Doing PHP since 2000.
• Service Delivery Manager
• _at_ Clarion Technologies Pvt. Ltd.
• CMMI Level 3 Company
• My application Cities I visited listed at Orkut
  directory.

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Something about you

• How many of you know OpenSocial?
• How many of you used Facebook Applications?
• How many of you used Orkut Applications?.

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Why OpenSocial?

• Facebook has its own API. It became popular with
  launch of applications.
• There are many other networking sites like Orkut,
  MySpace, hi5, linkedin etc.
• What if all creates their own API? Developer will
  have to create different application for each
  platform.

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What an idea
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What is OpenSocial?

• OpenSocial defines a common API for social
  applications across multiple websites. Built from
  standard JavaScript and HTML, developers can
  create apps with OpenSocial that access a
  social network's friends and update
  feeds.

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Journey of OpenSocial

• Launched on November 1, 2007 with initial version
  0.5
• Initially supported by Friendster, hi5, MySpace,
  Ning, orkut and many more.
• At launch Flixster, FotoFlexer, iLike, Newsgator,
  RockYou, Slide, Theikos, and VirtualTourist
  presented applications.
• Current version 0.8 released on May 28, 2008.

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Who all are using it.
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Basics

• Simple Hello World Application
  (helloworld.xml)
• lt?xml version"1.0" encoding"UTF-8" ?gt
• ltModulegt
• ltModulePrefs title"Hello World!"gt
• ltRequire feature"opensocial-0.8" /gt
• lt/ModulePrefsgt
• ltContent type"html"gt
• lt!CDATA Hello, world!gt
• lt/Contentgt
• lt/Modulegt

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Listing Friends 1 - xml

• lt?xml version"1.0" encoding"UTF-8"?gt
• ltModulegt
• ltModulePrefs titlePHPCamp- List Friends"gt
• ltRequire feature"opensocial-0.7"/gt
• lt/ModulePrefsgt
• ltContent type"html"gt
• lt!CDATA ltscript type"text/javascript"gt /
  ... / lt/scriptgt
• ltdiv id'main'gt
• Your friends ltdiv id'friends'gtlt/divgt
• lt/divgt
• gt lt/Contentgt lt/Modulegt

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Listing Friends 2- js

• ltscript languageJavaScriptgt
• gadgets.util.registerOnLoadHandler(init)
• function init()
• var req opensocial.newDataRequest()
• var opt_params
• opt_paramsopensocial.DataRequest.PeopleRequest
  Fields.MAX 20
• req.add(req.newFetchPeopleRequest('OWNER_FRIEN
  DS',opt_params), 'ownerFriends')
• req.send(onLoadFriends)
• lt/scriptgt

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Listing Friends 3- js

• function onLoadFriends(data)
• var viewerFriends data.get('viewerFriends').get
  Data()
• var html""
• html'ltulgt'
• viewerFriends.each(function(person)
• var friend_thumbnail person.getField(opensocial
  .Person.Field.THUMBNAIL_URL)
• html 'ltligt' person.getDisplayName()
  'ltimg src"'friend_thumbnail'"gt lt/ligt'
• )
• html 'lt/ulgt'
• document.getElementById('friends').innerHTML
  html

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Listing Friends 4- output
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What else you can do

• Send request to your server and return
  information in text,XML or JSON format.
• Insert activity in users updates.
• Use of AJAX.
• Store information at Orkut server.
• Fetch owner and his friends information.

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What you cant do

• Post scraps through your application.
• Fetch personal information like phone number,
  birth date etc.
• Communicate between different OpenSocial sites.
• Any change at Orkut site. Application runs only
  at the space allocated to it e.g. profile view
  and container view.
• Run exactly same application on all supported
  sites.

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References

• Orkut OpenSocial Blog http//orkut-open-social.blo
  gspot.com/
• Orkut Developer Forum http//groups.google.com/gro
  up/opensocial-orkut
• Orkut developer Guide http//code.google.com/apis/
  orkut/docs/orkutdevguide.html
• OpenSocial Tutorial http//code.google.com/apis/op
  ensocial/articles/tutorial/tutorial-0.8.html

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Thats it!

• If you have any questions, don't hesitate to ask.
• Demonstration scripts and forms can be seen under
  
• http//www.myphpdunia.com/phpcamp.html
• Feel free to contact me at pravin_nirmal_at_yahoo.com
  

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Thanks a lot for your interest.