The "JavaScript Service Hosting" feature facilitates a number of built-in objects to provide access to various data sources from your service. You can refer to more detail on each host object from the WSO2 Mashup Server documentation as follows.
- APP: A collection of objects facilitating publishing using the Atom Publishing Protocol (APP) : http://wso2.org/project/mashup/2.3.2/docs/apphostobject.html
- Email: An object that allows emails to be sent from mashups : http://wso2.org/project/mashup/2.3.2/docs/emailhostobject.html
- IM: An object that allows Instant Messages to be sent from mashups : http://wso2.org/project/mashup/2.3.2/docs/imhostobject.html
- Feed: A generic collection of objects allowing the consuming and persisting of Atom/RSS feeds : http://wso2.org/project/mashup/2.3.2/docs/feedhostobject.html
- File: An object that allows files to be read and written to the .resources folder : http://wso2.org/project/mashup/2.3.2/docs/filehostobject.html
- Request: A global object that provides the ability for users to get information regarding the request it received : http://wso2.org/project/mashup/2.3.2/docs/requesthostobject.html
- Session: A global object that aids in a persisting state for the duration of a session : http://wso2.org/project/mashup/2.3.2/docs/sessionhostobject.html
- Scraper: An object that allows Web pages to be converted into XML for data extraction and other manipulations : http://wso2.org/project/mashup/2.3.2/docs/scraperhostobject.html
- System: A global object providing methods for useful tasks such as including JavaScript files : http://wso2.org/project/mashup/2.3.2/docs/systemhostobject.html
- WSRequest: An object for invoking a Web service without a stub, or necessarily even a WSDL : http://wso2.org/project/mashup/2.3.2/docs/wsrequesthostobject.html