Page last modified 05:40, 7 May 2008 by SteveB
Table of contents
The following query parameters are understood by all Dream features that operate in XML. The processing parameters can be used to convert data formats, select subsets from responses, and modify response headers.
For example, an iCalendar file could be converted to JSONP message by posting its contents to the following URI:
http://myserver/host/convert?dream.in.format=versit&dream.out.format=jsonp
Pre-Processing
| Parameter | Value Type | Description |
| dream.in.format | {html, versit, xpost, xspan, xhtml, xml} | alternative input format for the request to be converted to an XML document (default is xml) |
| dream.in.host | string | override HTTP host header (allows tunneling through proxies without losing the original host information) |
| dream.in.root | string | root tag applied to XML document (default is "list") |
| dream.in.verb | string | override HTTP verb (allows use of PUT and DELETE over POST) |
| dream.in.uri | uri | public URI base to use for all generated URI reference |
Post-Processing
| Parameter | Value Type | Description |
| dream.out.type | string | content-type of response |
| dream.out.format | {json, jsonp, php, versit, xspan, xhml, xml} | output format for the request (default is xml) |
| dream.out.pre | string | prefix used by the output format (used by json, jsonp) |
| dream.out.post | string | postfix used by the output format (used by json) |
| dream.out.saveas | string | trigger save dialog in browser with suggested filename |
| dream.out.callback | string | callback usedb by output format (used by json) |
| dream.out.select | xpath | xpath for selecting the first subset of the response document |
Dream Headers
| Parameter | Value Type | Description |
| X-Forwarded-Host | string | override Host header (allows redirection through Apache mod_proxy) |
| X-HTTP-Method-Override | string | override HTTP verb (allows use of PUT and DELETE over POST) |
| X-Dream-Transport | string | Transport name on which the request was received on (for HttpTransport this is host:port) |
| X-Dream-Service | uri | Service
URI that made the request; this information is only available within
Dream runtime; the header is cleared when sending or receiving messages
over a transport. |
| X-Dream-Public-Uri | uri | Public URI base to use for all generated URI reference. |
| X-Dream-User-Host | string | Requesting host name (i.e. most recent origin of request, could be a proxy) |
| X-Dream-Origin | string | Origin of request (i.e. user agent to initiated the request) |
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