1. Atom and RSS
Web Syndication Formats
Nathan Quach – 17325178@student.uws.edu.au

2. Agenda
 What are Atom & RSS?
 History
 Benefits of Atom & RSS
 How to read a Atom/RSS feed
 Compare Atom & RSS
 Implement Atom & RSS in Joomla
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3. What are Atom & RSS?
 Families of web content syndication format.
 XML-based
 used in web feed
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4. What are Atom & RSS?
Atom RSS
 Atom Syndication  Really Simple
Format Syndication
 File extension: .atom,  File extension: .rss, .xml
.xml  Internet media type:
 Internet media type: application/rss+xml
application/atom+xml  Type of format: Web
 Type of format: Web syndication
syndication  Extended from: XML
 Extended from: XML  Latest version: RSS 2.0
4  Latest version: Atom 1.0 8/7/2012

5. What are Atom & RSS?
Atom example document
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title>Example Feed</title>
<subtitle>A subtitle.</subtitle>
<link href="http://example.org/feed/" rel="self" />
<link href="http://example.org/" />
<id>urn:uuid:60a76c80-d399-11d9-b91C-0003939e0af6</id>
<updated>2003-12-13T18:30:02Z</updated>
<author>
<name>John Doe</name>
<email>johndoe@example.com</email>
</author>
<entry>
<title>Atom-Powered Robots Run Amok</title>
<link href="http://example.org/2003/12/13/atom03" />
<link rel="alternate" type="text/html”
href="http://example.org/2003/12/13/atom03.html"/>
<link rel="edit" href="http://example.org/2003/12/13/atom03/edit"/>
<id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
<updated>2003-12-13T18:30:02Z</updated>
<summary>Some text.</summary>
</entry>
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6. What are Atom & RSS?
RSS example document
<?xml version="1.0" encoding="UTF-8" ?>
<rss version="2.0">
<channel>
<title>RSS Title</title>
<description>This is an example of an RSS feed</description>
<link>http://www.someexamplerssdomain.com/main.html</link>
<lastBuildDate>Mon, 06 Sep 2010 00:01:00 +0000 </lastBuildDate>
<pubDate>Mon, 06 Sep 2009 16:45:00 +0000 </pubDate>
<item>
<title>Example entry</title>
<description>Here is some text containing an interesting
description.</description>
<link>http://www.wikipedia.org/</link>
<guid>unique string per item</guid>
<pubDate>Mon, 06 Sep 2009 16:45:00 +0000 </pubDate>
</item>
</channel>
</rss>
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7. History
1997 scriptingNews
(UserLand)
Deprecated
1999 RSS 0.9 scriptingNews
(Netscape) RSS 0.91
2.01 (UserLand)
(Netscape)
2000 RSS 0.91 RSS 1.0 (RSS-
(UserLand) RSS 0.92
DEV Working
(UserLand)
Group)
2002 RSS 2.0
(UserLand) Froze Atom Project
n started
2003
RSS 2.0
(Harvard)
2005
Atom 1.0
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8. Why Atom & RSS?
 Need to distribute content through Internet
 Site to site
 Site to end user
 Simple & fast method/standard/format
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9. Benefits from Atom & RSS
 To users:
 Save time
 Protect privacy
 To publishers:
 Allow content to wider audience
 Increase site’s awareness, traffic
 Improve site-user relationship
 Syndicate other feeds to generate new content
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10. “Disadvantage” of Web Feed
 To users:
 learn new thing.
 personal preference concern
 To publishers:
 hard to know subscriber’s info (compare to
newsletter)
 server load concern
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11. How to read a Feed
 Feed Reader or Feed Aggregator:
 Windows
 BottomFeeder: http://www.cincomsmalltalk.com/BottomFeeder/
 FeedDemon: http://www.feeddemon.com/
 Mac OS X
 BottomFeeder: http://www.cincomsmalltalk.com/BottomFeeder/
 NetNewsWire: http://ranchero.com/netnewswire/
 Linux
 BottomFeeder: http://www.cincomsmalltalk.com/BottomFeeder/
 Android
 gReader
 FeedR
 iOS
 Reeder
 NetNewsWire
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12. Compare RSS and Atom
RSS Atom
Schema No Yes
Specifications RSS2.0 is frozen IETF RFC 4287
Publishing Protocols MetaWeblog, Blogger AtomPub
Namespace No XML namespace
Unregistered IANA registered
Autodiscovery
Application/rss+xml Application/atom+xml
Feed & entry title, uid
Feed title, link,
Required content & last updated
description
timestamp
Number of elements 30 20
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13. Implement Atom & RSS in
Joomla
 Demo environment:
 Windows/Linux
 XAMPP 1.7.4
 Joomla 1.7
 Joomla already has integrated Syndication
modules for:
 Publishing feeds.
 Syndicating feeds from other sites.
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14. Implement Atom & RSS in
Joomla
 Feed Publishing:
 Login to Administrator
 Select Extensions > Module Manager
 Click New > Select Syndication Feeds Module
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15. Implement Atom & RSS in
Joomla
 Feed Publishing (cont)
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16. Implement Atom & RSS in
Joomla
 Feed Publishing (cont)
 Enter required information and Save
 Go to a page and check the result
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17. Implement Atom & RSS in
Joomla
 Feed Syndication:
 Login to Administrator
 Select Extensions > Module Manager
 Click New > Select Feed display Module
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18. Implement Atom & RSS in
Joomla
 Feed Syndication (cont):
 Input the Feed URL you want to syndicate.
 Save and go to homepage to view the result.
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19. Questions and comments?
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20. Thank you for listening
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