Hi,

I'm trying to connect an application to the Dutch Chamber of Commerce (KvK) dataservice using python 3.7.3 and zeep==3.4.0. This appears to be a bit of a pain.

The wsdl for this service is available via http://schemas.kvk.nl/contracts/kvk/dataservice/catalogus/2015/02/. No problems there yet.

wsa is added automatically, probably due to data found in the wsdl. The wsa headers are added twice when I add the WsAddressingPlugin via the plugins parameter at initialization of the Client instance. I'll try to add a reproducer later on.

There's a requirement in the docs saying the service is unable to process messages that contain a MessageID which is prefixed by urn. I think a lot of developers would be happier when the service would be able to process messages containing that prefix instead of documenting this issue, but that's out of my control. Here's an excerpt in Dutch, but I'm guessing that's not an issue for you ;)

LET OP: sommige IDE tooling zoals bijvoorbeeld Microsoft Visual Studio voegt “urn:” voor “uuid:”. De Handelsregister Dataservice controles zullen een request met deze syntax afwijzen!
(https://www.kvk.nl/sites/aansluitendataservice/index.html#/webservice-werkingsprincipes)

Is there a way to remove the urn prefix from the MessageID? Do I need to override the plugin somewhere?