The WikiRestService service is used to provide Wiki data, such as Wiki tree data, or list of Spaces. The configuration of this service is found in wiki-service/src/main/resources/conf/portal/configuration.xml:

<component>

    <key>org.exoplatform.wiki.service.WikiRestService</key>

    <type>org.exoplatform.wiki.service.impl.WikiRestServiceImpl</type>

</component>