I've also done plenty of SOAP back in the day. I independently invented the equivalent of SOAP in an API back in 1998 where my RPC API used only one method, whi

I've also done plenty of SOAP back in the day. I independently invented the equivalent of SOAP in an API back in 1998 where my RPC API used only one method, which was basically a "call(command)" for sending XML data upstream and getting an XML response (C++ app). The request XML had the "name" of the "verb" as part of the request. Basically a "command pattern". So what I do today is I use "REST APIs" (like in Java Spring, Axios/Ajax, etc.) but all my endpoints are named as "verbs" (not nouns), and the only HTTP verb I ever do is a "POST". So everything boils down to this: let myJsonReponse = api.doSomeVerb(myJsonRequest);