<description datatypeLibrary=“www.w3.org/2001/XMLSchema-datatypes” xmlns=“riddl.org/ns/description/1.0” xmlns:xi=“www.w3.org/2001/XInclude”>

<message name="dfout">
  <parameter name="content" mimetype="*"/>
</message>
<message name="dfin">
  <parameter name="mimetype" type="string"/>
  <parameter name="content" type="string"/>
</message>

<resource pattern="http://riddl.org/ns/common-patterns/downloadify/1.0">
  <resource>
    <get in="dfin" out="dfout"/>
    <post in="dfin" out="dfout"/>
  </resource>  
</resource>

</description>