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Open Social

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1. Danish Nadeem Celstec, OUNL 20-01-2009 2. <ul><li>The Web is better when it’s social” </li></ul><ul><li>What is OpenSocial?…
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  • 1. Danish Nadeem Celstec, OUNL 20-01-2009
  • 2. <ul><li>The Web is better when it’s social” </li></ul><ul><li>What is OpenSocial? </li></ul><ul><li>How is OpenSocial useful? </li></ul><ul><li>OpenSocial: Technology Overview </li></ul><ul><li>Developing a Social App: a “Hello World“ example on orkut </li></ul><ul><li>References </li></ul>
  • 3. <ul><li>Social Networks provide sociability of web. </li></ul><ul><li>Millions of users already have signed up for different social networks around the world, number growing everyday. </li></ul><ul><li>Building apps that easily interact with your friends and colleagues would make web more social. </li></ul>
  • 4. Slide Source: Chris Schalk @ Google TM … how to build an application that will run on multiple social websites
  • 5. A common set of APIs for building social applications across multiple websites. Currently many websites implement OpenSocial: hi5, Hyves, LinkedIn, MySpace, Ning, Oracle, orkut, Plaxo, XING and so on.
  • 6. Slide Source: Chris Schalk @ Google TM
  • 7. <ul><li>The existence of single programming model (common set of APIs) helps both developers and websites. </li></ul><ul><li>First, developers only have to learn the APIs once in order to build applications that work with any OpenSocial-enabled website. </li></ul><ul><li>Second, because any website can implement OpenSocial. Websites can benefit by engaging a much larger pool of third party developers than they could without a standard set of APIs. </li></ul>
  • 8. <ul><li>Facilitate developers to create applications that access a social network's friends and update feeds (using standard technology : HTML, Javascript). </li></ul>
  • 9. <ul><li>OpenSocial is based on HTML and JavaScript as well as the Google Gadgets framework. </li></ul><ul><li>OpenSocial includes three core APIs for social software applications to access data and core functions on participating social networks </li></ul><ul><li>Each API addresses a different aspect: </li></ul><ul><ul><ul><li>one for People and Friends (people and relationship information) </li></ul></ul></ul><ul><ul><ul><li>one for Activities (publishing and accessing user activity information to others e.g reading books, watching movies etc.) </li></ul></ul></ul><ul><ul><ul><li>one for Persistence (provides a storage mechanism to save and load data). </li></ul></ul></ul>
  • 10. <ul><li>What you need? </li></ul><ul><ul><li>a text editor </li></ul></ul><ul><ul><li>web hosting (google also provides hosting) </li></ul></ul><ul><ul><li>an orkut account </li></ul></ul><ul><ul><li>Access to the orkut sandbox (to test your social applications) </li></ul></ul>
  • 11. <ul><li><?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; ?> </li></ul><ul><li><Module> </li></ul><ul><li><ModulePrefs title=&quot;Hello World!&quot;> <Require feature=&quot;opensocial-0.8&quot; /> </li></ul><ul><li></ModulePrefs> </li></ul><ul><li><Content type=&quot;html&quot;> <![CDATA[ Hello, world! ]]> </li></ul><ul><li></Content> </li></ul><ul><li></Module> </li></ul>
  • 12. Hello world example... <ul><li>Gadgets are specified in XML. The first line is the standard way to start an XML file. </li></ul><ul><li>The <Module> tag indicates that this XML file contains a gadget. </li></ul><ul><li>The < ModulePrefs > tag contains information about the gadget such as its title, description, author, and other optional features. </li></ul><ul><li>The line <Content type=&quot;html&quot;> indicates that the gadget's content type is HTML. </li></ul><ul><li><![CDATA[ ... insert HTML here ... ]]> is used to enclose HTML when a gadget's content type is html. </li></ul><ul><li></Content> signifies the end of the Content section </li></ul><ul><li></Module> signifies the end of the gadget definition </li></ul>
  • 14. Listing friends example app
  • 15. <ul><li>Open social can make the web more social </li></ul><ul><li>Developers benefit by using common APIs for multiple websites. </li></ul><ul><ul><li>They can build social applications on different social network sites (orkut, Ning, hi5, MySpace ...) </li></ul></ul><ul><li>OpenSocial version 0.8 is released </li></ul>
  • 16. <ul><li>http://en.wikipedia.org/wiki/OpenSocial/ </li></ul><ul><li>http://code.google.com/apis/opensocial/ </li></ul>
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