wso2 Return property value from insequence - wso2

Question

I'm creating an wso2 that call an endpoint and then filter the response just to send back one field, but for some reason the esb answer with all the json
I have something like that:
<resource methods="POST" uri-template="/ESB">
<inSequence>
<call description="">
<endpoint key="CountryEP"/>
</call>
<property description="" expression="json-eval($.zones[0].countryCode)" name="uri.var.countryCode" scope="default" type="STRING"/>
<log description="">
<property expression="fn:concat('countryCode ', get-property('uri.var.countryCode')) " name="property_name"/>
</log>
<send buildmessage="true" description=""/>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
And my Endpoint
<?xml version="1.0" encoding="UTF-8"?>
<endpoint name="CountryEP" xmlns="http://ws.apache.org/ns/synapse">
<http method="get" trace="enable" uri-template="http://api.timezonedb.com/v2/list-time-zone?key=6HW6EJUENX9T&format=json&country={uri.var.country}"/>
</endpoint>
So as you can see above, i send a parameter to the API, and the API answers with a json, then i try to parse just one field (using the property) and i have the correct value:
INFO - LogMediator To:
http://www.w3.org/2005/08/addressing/anonymous, WSAction: ,
SOAPAction: , MessageID:
urn:uuid:97744789-8c88-41ff-9475-870761016834, Direction: request,
property_name = countryCode CA
But i can't return just that value, the esb return all json... ideas?
Thanks in advance,
EDIT: also tried with RESPONSE attribute on the property mediator

Answer 1

Try something like this:
<call description="">
<endpoint key="CountryEP"/>
</call>
<property description="" expression="json-eval($.zones[0].countryCode)" name="uri.var.countryCode" scope="default" type="STRING"/>
<log description="">
<property expression="fn:concat('countryCode ', get-property('uri.var.countryCode')) " name="property_name"/>
</log>
<payloadFactory media-type="json">
<format>{ "Country Code": $1}</format>
<args>
<arg expression="$.zones[0].countryCode.text" evaluator="json"/>
</args>
</payloadFactory>
<property name="messageType" value="application/json" scope="axis2"/>
<respond/>