I have two clusters A and B where one element on B is sending GET requests to A through an user defined API on a time basis. The user defined script sends back the response.

I also have one script on A that sends http messages to B when certain events occur.  So I've created also an user defined API on B. Then, the user defined script parses the POST message and sets data in the element.

Any recommendation about it? Is there a better approach?

Current implementation is working fine. I'm using HttpClient to call GetAsync and SendAsync methods.