Thank you, Marco. So, the download issue seems to be with XForms
(XSLTForms) rather than BaseX. If I do a file upload from a plain HTML
form, the file download is triggered correctly. However, even though I have
set "application/json" as the Content-Type, the contents of the downloaded
file are an escaped string rather than a serialized JSON object: e.g.,
"{\n \"key\": \"value\"\n}"
Is there a way to produce a properly serialized JSON file for download?
--
Tim A. Thompson
Discovery Metadata Librarian
Yale University Library
On Thu, Aug 1, 2019 at 3:03 AM Marco Lettere <[email protected]> wrote:
> Hi Tim,
> downloading from a browser when posting a form is usually a bit tricky.
> For me it always ended up with the creation of an artificial <a ...>
> element with an href crafted from the form parameters and with an attribute
> download="filename.ext" added to it.
> Anyway you could try with returning a "forced" application/octet-stream
> Content-Type header ....
>
> M.
>
> On 01/08/19 05:00, Tim Thompson wrote:
>
> Hello,
>
> I am posting a JSON doc to a RESTXQ function from XForms and trying to set
> a Content-Disposition header to trigger a file download. Is this possible
> to do without first saving the JSON doc as a file? Right now, the RESTXQ
> function returns the correct headers, but does not force a file download
> dialog.
>
> Thanks in advance!
> Tim
>
> --
> Query:
>
> xquery version "3.1";
>
> module namespace wrap = "http://example.org/wrap";;
>
> declare
> %rest:path("/wrap")
> %rest:POST("{$data}")
> %output:method("json")
> function wrap:process(
> $data as node()
> ) as item()* {
> let $name := data($data/data/upload/file/@name)
> let $json := json-to-xml($data/data/upload/file)
> let $header :=
> ``[attachment; filename="`{$name}`";]``
> return
> (
> <rest:response>
> <http:response
> status="200" message="OK">
> <http:header
> name="Content-Type"
> value="application/json"/>
> <http:header
> name="Content-Disposition"
> value="{$header}"/>
> </http:response>
> </rest:response>,
>
> <map xmlns="http://www.w3.org/2005/xpath-functions";>
> <map
> key="Profile">
> <array
> key="resourceTemplates">{$json}</array>
> <string
> key="title">Wrapper_Profile</string>
> <string
> key="id">Wrapper:Profile:BF2</string>
> <string
> key="description">Profile wrapper for resource
> templates</string>
> <string
> key="author">Wrapper</string>
> <string
> key="schema">
> https://ld4p.github.io/sinopia/schemas/0.0.9/profile.json</string>
> <string
> key="date">{current-dateTime()}</string>
> </map>
> </map> => xml-to-json() => parse-json() => serialize(map {'method':
> 'json', 'use-character-maps' : map {'/' : '/'}})
> )
> };
>
>
> --
> Tim A. Thompson
> Discovery Metadata Librarian
> Yale University Library
>
>
>
