ERROR {JsonStreamBuilder} - Error occurred while processing document for application/json java.lang.reflect.InvocationTargetException

Question

I'm on wso2 mi trying to log json response objeect returned from target endpoint the enpoint return json but when i tried to test wos2 exposed api i got:

[2025-04-17 17:26:04,349] ERROR {JsonStreamBuilder} - Error occurred while processing document for application/json

My api

`

        <call>
            <endpoint key="todos-server"/>
        </call>

        <log level="custom">
            <property name="ContentType" expression="get-property('axis2', 'ContentType')"/>
            <property name="RawResponse" expression="$body"/>
        </log>

        <property name="CHARACTER_SET_ENCODING" value="UTF-8" scope="axis2" type="STRING"/>
        <property name="messageType" value="application/json" scope="axis2" type="STRING"/>
        

        <log level="custom">
                <property name="JsonResponse" expression="json-eval($)"/>
        </log>
        
        <respond/>
    </inSequence>

` the problem is that if i test api from postman or navigator directly everything work fine`

Chanikag · Accepted Answer · 2025-04-21 03:54:41Z

0

This issue happens when the payload you are doing json-eval is a malformed json payload. Verify whether it is a valid json payload.

answered Apr 21 at 3:54

Chanikag

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1 Comment

ABDLEHADI EL BCIR May 12 at 10:45

it is a valid json i guess the problem is related to the target endpoint i had to set Accept-Encoding header value to empty string ""

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