Google‘s
Open Social
Christian Scholz
http://mrtopf.de/connect
Barcamp Berlin 2
http://comlounge.net

Write once, run everywhere

Google Gadget
Application

Google Gadget
Application
Platform

Google Gadget
Application
OpenSocial API
Platform

Platform
OpenSocial API
Google Gadget
Application
OpenSocial API
Platform

Orkut
Flixter
Ning

Example

Writing Applications

1. Write a Google Gadget

Example GG HTML
<?xml version=\"1.0\" encoding=\"UTF-8\" ?>
<Module>
<ModulePrefs title=\"Go to Photo Album\" height=\"250\" scaling=\"false\" />
<Content type=\"html\">
<![CDATA[
<div style=\"text-align:center\"><a
id=\"Riggs\" title=\"My Photo Album\" target=\"_blank\"
href=\"http://picasaweb.google.com/doc.examples/ShelfBoy\">
<img border=\"0\" alt=\"Photo\" src=\"http://doc.examples.googlepages.com/Riggsie-OP.jpg\"
title=\"Click Here.\"></a>
</div>
]]>
</Content>
</Module>

2. Importing Open Social
<ModulePrefs title=\"Title of Your Application\">
<Require feature=\"opensocial-0.5\"/>
</ModulePrefs>

3. Using Open Social
function onLoadFriends(dataResponse) { // do something with the
dataResponse }
/**
* Request for friend information when the page loads.
*/
function getData() {
document.getElementById('message').innerHTML = 'Requesting friends...';
var req = opensocial.newDataRequest();
req.add(req.newFetchPersonRequest('VIEWER'), 'viewer');
req.add(req.newFetchPeopleRequest ('VIEWER_FRIENDS'), 'viewerFriends');
req.send(onLoadFriends);
};

3. Using Open Social
/**
* Parses the response to the friend information request and generates
* html to list the friends by their display name.
*
* @param {Object} dataResponse Friend information that was requested.
*/
function onLoadFriends(dataResponse) {
var viewer = dataResponse.get('viewer').getData();
var html = 'Friends of ' + viewer.getDisplayName();
html += ':<br><ul>';
var viewerFriends = dataResponse.get('viewerFriends').getData();
viewerFriends.each(function(person) {
html += '<li>' + person.getDisplayName();
});
html += '</ul>';
document.getElementById('message').innerHTML = html;
};

3 APIs
1. People and Relationships
2. Persistence
3. Activities

3 APIs
1. People and Relationships
2. Persistence
3. Activities
How are users between different social networks connected?

Hosting Applications

OpenSocial Service Provider
Interface
* Adding and removing friends
* Adding and removing apps
* Storing activities
* Retrieving activity streams for self and friends
* Storing and retrieving per-app and per-app-per-user data

more documentation
still to come
with SDK