XQuery/Uploading Files

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Motivation[edit | edit source]

You want to upload files to your eXist database using simple HTML forms.

Method[edit | edit source]

We will use the HTML <input> element in the web form and the store function in an XQuery.

HTML Form[edit | edit source]

We will use a standard HTML form but we will add a enctype="multipart/form-data" attribute.

<html xmlns="http://www.w3.org/1999/xhtml">
        <title>HTML Upload</title>
        <form enctype="multipart/form-data" method="post" action="upload.xq">
                <legend>Upload Document:</legend>
                <input type="file" name="file"/>
                <input type="submit" value="Upload"/>

Screen Image:

XQuery[edit | edit source]

On the server side, we will use the request:get-uploaded-file-name() to get the name of the incoming file and the request:get-uploaded-file-data() function to get the data from the file. We can then used the xmldb:store() function to save the file.

File: upload.xq

let $collection := '/db/test/upload-test'
let $filename := request:get-uploaded-file-name('file')

(: make sure you use the right user permissions that has write access to this collection :)
let $login := xmldb:login($collection, 'admin', 'my-admin-password')
let $store := xmldb:store($collection, $filename, request:get-uploaded-file-data('file'))

   <message>File {$filename} has been stored at collection={$collection}.</message>

Acknowledgments[edit | edit source]

This example was posted on the eXist open mailing list by Rémi Arnaud on Nov. 05, 2010.