Also, just so by the way. For anyone who finds this in the future:
I was able to do a SOAP request using the normal POST node, just like a REST service.
You can put the XML as a column in the request body. It’s just picky about encoding, a “Content-Type: application/soap+xml; charset=utf-8” header solved that for me, binary to text to make it readable.
I prefer this, because a lot of variable in the POST service I have to use are optional. The generic web client does not like optional variables.
Noice. 