Really Simple Discovery

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Really Simple Discovery (RSD) is an XML format and a publishing convention for making services exposed by blog, or other web software, discoverable by client software. It is a way to reduce the information required to set up editing/blogging software to three well known elements:

• Username,
• Password, and
• Homepage URL.

Any other critical settings should either be defined in the RSD file related to the blog, or discoverable using the information provided.

Contents 1 History 2 Format 3 Contents 4 References 5 See also 6 External links

[edit] History

RSD was proposed by Daniel Berlinger in the Really Simple Discoverability 1.0 specification.

[edit] Format

To make use of RSD, the owner of a site places a link tag in the head section of the homepage which indicates the location of the RSD file. An example:

 <link rel="EditURI" type="application/rsd+xml" title="RSD" href="http://wherever the rsd.xml lives." />

If this tag is missing or the file is not found, clients should look in the default location which is a file named rsd.xml in the webroot.^[1] For example:

 http://example.com/rsd.xml

[edit] Contents

Here is a sample RSD file, from "Really Simple Discoverability 1.0":

 <?xml version="1.0" ?> 
 <rsd version="1.0" xmlns="http://archipelago.phrasewise.com/rsd" >
    <service>
        <engineName>Blog Munging CMS</engineName> 
        <engineLink>http://www.blogmunging.com/</engineLink>
        <homePageLink>http://www.userdomain.com/</homePageLink>
        <apis>
                <api name="MetaWeblog" preferred="true" apiLink="http://example.com/xml/rpc/url" blogID="123abc" />
                <api name="Blogger" preferred="false" apiLink="http://example.com/xml/rpc/url" blogID="123abc" />
                <api name="MetaWiki" preferred="false" apiLink="http://example.com/some/other/url" blogID="123abc" />
                <api name="Antville" preferred="false" apiLink="http://example.com/yet/another/url" blogID="123abc" />
                <api name="Conversant" preferred="false" apiLink="http://example.com/xml/rpc/url" blogID="">
                    <settings>
                        <docs>http://www.conversant.com/docs/api/ </docs> 
                        <notes>Additional explanation here.</notes>
                        <setting name="service-specific-setting">a value</setting> 
                        <setting name="another-setting">another value</setting> 
                         ... 
                    </settings>
                 </api>
        </apis>
    </service>
 </rsd>
 

[edit] References

1. ^ "RFC: Really Simple Discoverability 1.0". 2007-10-16. http://tales.phrasewise.com/rfc/rsd#ODoxNTozNiBBTQdbdb. 

[edit] See also

• Weblog software
• Blog
• CMS

[edit] External links

• Really Simple Discoverability 1.0 by Daniel Berlinger
• Forum thread with participation by Berlinger, contains common language explanations

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