Hi

Current REST API monitor response parsing can be only checked  for the expression assertions. 

So the parsed value could be checked for assertion and in case of failure - it could be printed to log with assertion warning.

We propose to add a variable(s) of the parsed value(s) and to give an ability to show it on the graph of the REST API monitor.

REST API is the worldwide conventional way for corresponding functionality.

This is very important feature that helps to show customer performance monitoring parameters of the customer system in a simple way.

Best Regards

Michael