<property expression="json-eval(json-eval($.key)" name="isDataFound"
        scope="default" type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>
  <filter xmlns:ns="http://org.apache.synapse/xsd" xpath="string-length($ctx:isDataFound)>0">
        <then/>

<else/>
</filter>

<filter xpath="//jsonObject/totalItems">