Hi Robert,

Yeah, that’s not necessarily obvious, but the type of the document you post is „document-node()“ not element() — so simply change the function & argument types to document-node() and you will be fine.

Usually the the in-browser debugging > Network view helps with identifying such „low-level“ errors, yet I tend to use the command-line more often since I discovered httpie[1]

echo "<xml/>"|http POST http://localhost:8984/test Content-Type:text/xml HTTP/1.1 400 Bad Request Stopped at /Users/michael/tmp/ml/webapp/foo.xqm, 5/10: [XPTY0004] Cannot convert document-node() to element(): document-node {''}.

Hope this helps & best from Konstanz

Michael

[1] https://httpie.org

Am 06.05.2019 um 14:09 schrieb Robert Kirkpatrick robert@eridan.net:

Hello,

I am trying to implement an XForm for posting data via:

<xf:submission resource="http://localhost:8984/test http://localhost:8984/test" method="post" serialization="application/xml" replace="all" />

It should invoke the following query (in webapp):

module namespace page = 'http://basex.org/examples/web-page http://basex.org/examples/web-page'; declare %rest:path("/test") %rest:POST("{$data}") function page:hello ( $data as element() ) as element() { $data };

But I get this instead: <image.png> TIA for any help, Robert.