WSO2 get value from service response - xpath

Question

I have this rest api in WSO2 ESB:
<api xmlns="http://ws.apache.org/ns/synapse" name="RestApi" context="/rest">
<resource methods="POST GET" uri-template="/view/{symbol}" protocol="http">
<inSequence>
<log level="full"/>
<payloadFactory media-type="xml">
<format>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:web="http://www.w3schools.com/webservices/">
<soapenv:Header/>
<soapenv:Body>
<web:FahrenheitToCelsius>
<web:Fahrenheit>$1</web:Fahrenheit>
</web:FahrenheitToCelsius>
</soapenv:Body>
</soapenv:Envelope>
</format>
<args>
<arg evaluator="xml" expression="get-property('uri.var.symbol')"/>
</args>
</payloadFactory>
<property name="DISABLE_CHUNKING" value="true" scope="axis2"/>
<send>
<endpoint>
<address uri="http://www.w3schools.com/webservices/tempconvert.asmx" format="soap11"/>
</endpoint>
</send>
</inSequence>
<outSequence>
<property name="messageType" value="application/json" scope="axis2"/>
<property name="msgbody" expression="$body" scope="default" type="STRING"/>
<log level="custom">
<property name="To" expression="get-property('msgbody')"/>
</log>
<payloadFactory media-type="json">
<format>{"Status":"evgeni"}</format>
<args/>
</payloadFactory>
<send/>
</outSequence>
<faultSequence/>
</resource>
</api>
The important part is the <outSequence></outSequence>
The property <property name="msgbody" expression="$body" scope="default" type="STRING"/> returns the response from the soap service. It looks like this:
<soap:Body xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<FahrenheitToCelsiusResponse xmlns="http://www.w3schools.com/webservices/">
<FahrenheitToCelsiusResult>4.44444444444444</FahrenheitToCelsiusResult>
</FahrenheitToCelsiusResponse>
</soap:Body>
I want to get just the value of FahrenheitToCelsiusResult (4.44444444444444). How can I do that?
I tried:
<property xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
name="msgbody"
expression="$body/soap:Body/FahrenheitToCelsiusResponse/FahrenheitToCelsiusResult"
scope="default" type="STRING"/>
but it returns an empty string.

Answer 1

You have to provide the namespace in the xpath expression as in below
<property expression="//ns:FahrenheitToCelsiusResult"
name="msgbody" scope="default" type="STRING"
xmlns:ns="http://www.w3schools.com/webservices/"/>
For more information please refer to this link
Thanks.

Answer 2

<property name="tempValue" expression="//*[local-name()='FahrenheitToCelsiusResult']" scope="default" type="STRING"/>