I have reviewed the Gatling validations page, but I don’t understand exactly how to implement it for my use case. I have a Scala function ‘def isValidJSON ()’ that returns true if the JSON for a previous http request is valid and false if not. I can’t seem to find out how to use this function I built to serve as validator in the flow of my Gatling test. Right now I have it assigning the result of the function to a session variable, but haven’t been able to use it to trigger a test failure. I don’t know if anyone has any concrete suggestions.