title: JMeter- Validating if REST response is indeed in JSON format
body: <p>I am starting out so excuse my naive question. I researched on how to test if REST response is indeed is JSON/ or in JSON format.  I get two options either to use the plugin JSON Path Assertion or regular expression.  But I am not sure how to use the plugin to validate if the response is in JSON format.  I do not want to test any specifics of the results. How can I do it in JMeter?</p>