This code sample is adapted from Clifford B. Anderson and Joseph C. Wicentowski, XQuery for Humanists (College Station: Texas A&M University Press, 2020), 260. Download this code sample in its raw form. View the source on GitHub.

xquery version "3.1";

declare function local:fetch-data($URI as xs:string) as document-node() {
    fn:error()
};

local:fetch-data("https://archive.org/metadata/heirofredclyffe00yong")