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→Custom Response
==Custom Response==
Custom responses can be built from within generated in XQuery by returning an <code>rest:response</code> element, an <code>http:response</code> child node that matches the syntax of the [http://expath.org/spec/http-client EXPath HTTP Client Module] specification, and more optional child nodes that will be serialized as usual. A function that reacts yields a response on an unknown resource may look as follows:
<pre class="brush:xquery">
declare %output:method("text") %rest:path("") function page:error404() {
<rest:response>
<http:response status="404" reason="I was not found.">
<http:header name="Content-Language" value="en"/>
<http:header name="Content-Type" value="text/htmlplain; charset=utf-8"/>
</http:response>
</rest:response>, "The requested resource is not available."
};
</pre>
