Simple example of retrieving a record in EAD (or Dublin Core) from the Archives Hub using SRU

ead.xqy

xquery version "3.0";
 
(: Look ups records at the Archives Hub (http://archiveshub.ac.uk/) in the specified metadata format :)

declare namespace sru = "http://www.loc.gov/zing/srw/";

(: change keyword for different documents :)
let $keyword := "castle"
 
(: change the requested format for different kinds of metadata - "ead", "srw_dc", or "oai_dc":)
let $metadata-format := "ead"
 
let $search := fn:concat("http://archiveshub.ac.uk/api/sru/hub?operation=searchRetrieve&recordSchema=", $metadata-format, "&version=1.1&recordPacking=xml&query=", $keyword, "&maximumRecords=1")
 
let $metadata := http:send-request(<http:request method='get' href="{$search}"/>)
return $metadata//sru:recordData/*

Try it out in BaseX.