[erlang-questions] soap and utf8 problem

[semmit mondo]

Hi,

I use this Erlang SOAP library

https://github.com/bet365/soap

from an Elixir application.  Everything works fine up until I try to
send strings with accents (or other unusal characters) in it.

This is what I get:

{:fault, 500,
 [{'connection', 'close'}, {'date', 'Fri, 10 Jun 2016 10:18:53 GMT'},
  {'server', 'Apache/2.4.18 (Unix) OpenSSL/1.0.2g'}, {'content-length', '278'},
  {'content-type', 'text/xml; charset=utf-8'}], [],
 {:soap_fault_1_1,
  {:faultcode, 'http://schemas.xmlsoap.org/soap/envelope/', 'Client',
   :undefined}, 'Bad Request', :undefined, []}, [],
 "<?xml version="1.0" encoding="UTF-8"?>n<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><S
OAP-ENV:Body><SOAP-ENV:Fault><faultcode>SOAP-ENV:Client</faultcode><faultstring>Bad Request</faultstring></SOAP-ENV:Fault></SOAP
-ENV:Body></SOAP-ENV:Envelope>n"}


...and the way I convert utf8 binaries to char lists is simply using
the '#{some_utf8_binary_string}' Elixir syntax.  (I believe this is the
same as to_char_list(some_utf8_binary).

Can anybody give me at least tips what to check and how to solve this issue?