Hi Oleg,
It would be great to have a SOAP Webservices Client plugin. We have already today an XML plugin and in the Internet plugin the Action "Check HTTP address", but overall it is next to impossible to do a SOAP WS call with RoboTask (that is any easier than just using curl in the command line). To be able to send the call to a SOAP endpoint, to parse the response (not only the XML payload)...
This would be a big complex plugin, but it could be done one step at a time in different releases.
I understand that making a SOAP Webservices Server plugin would be way too much for RoboTask, as RT does not even have a Webserver (that I'm aware of, other than the used for network connections to other RT instances) as for example nodejs does. These server functionalities would be a serious step ahead for RT, but it is definitely a huge time investment.
Kind regards,
Juanlu.