A few examples of JSON Path expressions, includes:
The policy sets the source JSON in a variable named msg and uses the Evaluate JSON Path Expression Assertion.
To use:
1) Open policy manager and create a test service
2) Download the attached file and import the XML file into your new service
3) Hit the endpoint via your desired user agent (i.e: browse, SOAPUI, etc).
9 items are returned showing the results of their respective operators.