http-post - SVC-UTF8SEQ - Invalid UTF-8 escape sequence: 0xf4 0x74

Question

I use the ML version 10.0-7.3 I have a problem with the http-post return when the host is unknown. I try to catch the error, but it's impossible. Here is the very reduced code :

xquery version "1.0-ml";
let $return := try {xdmp:http-post("http://toto/titi")} catch ($e) { $e}
return $return

and the result in the console is :

*[1.0-ml] SVC-UTF8SEQ: let $return := try { xdmp:http-post("http://toto/titi") } catch ($e) { $e } return $return -- Invalid UTF-8 escape sequence: 0xf4 0x74
Stack Trace
At line 4 column 0:
In xdmp:eval("xquery version "1.0-ml";


let $return := ...", (), 17567623539722960267...)
2.
3.
4. l et $return := try {
5. xdmp:http-post("http://toto/titi")}
6. catch ($e)*

Mads_Hansen_14419 · Answer

It may be that the xdmp:http-post() is being lazily evaluated, only resolved when the $return variable is dereferenced.

Try using xdmp:eager()

xquery version "1.0-ml";
let $return := try { xdmp:eager(xdmp:http-post("http://toto/titi")) } catch ($e) { $e}
return $return

Or move everything inside of the try{}

user_17769810 · Answer

I try on the version : 10.0-8.2 on centos and the catch is OK with the response :


404

Not Found


nginx/1.14.1

Mon, 17 Jan 2022 13:07:47 GMT

text/html

3971

keep-alive

"5d9bab28-f83"

http-post - SVC-UTF8SEQ - Invalid UTF-8 escape sequence: 0xf4 0x74

2 Answers