Ionic Soap Xml web service

HI! How I can connect Ionic 4/5 with a web service (SOAP implementation) with XML files?
There a lot of tutorials and examples with RESTful APIs, but quit a few with SOAP and pretty outdated (ionic 3 and below).
I guess i need xml2js package, but this is just a part of the solution.
So examples and/or tutoriales for the whole interaction are welcome!

Thanks in advance.