How to convert the JSON in WSO2 ESB - json

Question

I am trying to pass my JSON as a object to a WSO2 ESB.
I am getting JSON like this:
'{FIELDNAME":"NAME",FIELDVALUE:"KISHORE"}'
This JSON I need to pass my ESB as a dynamic column. But Its accepting like JSON {"NAME":"KISHORE"}. How can I convert from above JSON to below one in WSO2 ESB. If I get above one I am unable to pass to proxy. If I get below one I will pass like this (//name/child::text()) then I will get value as "KISHORE" I was tried with ENRICH mediator but its not working.
<proxy xmlns="http://ws.apache.org/ns/synapse" name="test_dynamic" transports="https,http" statistics="disable" trace="disable" startOnLoad="true">
<target>
<inSequence>
<enrich>
<source type="body" clone="true"/>
<target type="property" property="RM"/>
</enrich>
<property name="RM" expression="//fieldname/child::text()" scope="default" type="STRING"/>
<log level="custom">
<property name="r_no" expression="get-property('R_no')"/>
<property name="r_value" expression="get-property('R_value')"/>
<property name="emp_d" expression="get-property('emp')"/>
<property name="RM" expression="get-property('RM')"/>
</log>
<log level="full"/>
</inSequence>
</target>
<description></description>
</proxy>
ANS: request, Envelope:
<?xml version='1.0' encoding='utf-8'?>
<soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope">
<soapenv:Body><fieldname>e_no</fieldname><fieldvalue>5</fieldvalue></soapenv:Body>
</soapenv:Envelope>

Answer 1

I think you should send the JSON message like this:
'{"RECORD":{FIELDNAME":"NAME",FIELDVALUE:"KISHORE"}}'
then get the value by the "Property" mediator in WSO2 ESB, like
<property name="FIELDNAME" expression="//FIELDNAME/text()" scope="default" type="STRING"/>
<property name="FIELDVALUE" expression="//FIELDVALUE/text()" scope="default" type="STRING"/>

Answer 2

The link provided below by WSO2 explains the exact usecase which you are interested in solving
Steps:
Convert JSON to XML using the XSLT mediator
Use the Enrich mediator to replace the Body of the SOAP message
Follow this link for detailed info and actual proxy configuration
https://docs.wso2.com/display/ESB480/Sample+440%3A+Converting+JSON+to+XML+Using+XSLT