Hi All,

If we pass a JSON Payload with a null value, it is considering that null
value as "null" string. Please see a sample API and payload

API
====

<resource methods="POST" uri-template="/testapi">

      <inSequence>

         <property name="Id" expression="json-eval($.id)" scope="default"
type="STRING"/>

         <property name="ContractId" expression="json-eval($.contractid)"
scope="default" type="STRING"/>

         <property name="DealId" expression="json-eval($.dealid)"
scope="default" type="STRING"/>

         <payloadFactory media-type="xml">

            <format>

               <m1:updateForOperation xmlns:m1="http://www.test.com.";>

                  <m1:iId>$1</m1:iId>

                  <m1:iBitrixDealId>$2</m1:iBitrixDealId>

                  <m1:iBitrixContractId>$3</m1:iBitrixContractId>

               </m1:egateUpdateForBitrixOperation>

            </format>

            <args>

*               <arg evaluator="xml" expression="get-property('Id')"/>*

               <arg evaluator="xml" expression="get-property('DealId')"/>

               <arg evaluator="xml"
expression="get-property('ContractId')"/>

            </args>

         </payloadFactory>

         <log level="full"/>

         <send>

            <endpoint key="conf:DSEndpoint"/>

         </send>

         <respond/>

      </inSequence>

      <outSequence>

         <send/>

      </outSequence>

   </resource>

Payload
======

{

           "id":null,

           "contractid":"test",

           "dealid":"test1"

}

According to above sample highlight argument passing to dss service as
"null" string. It looks this is a bug.


Thanks
Godwin

-- 
*Godwin Amila Shrimal*
Associate Technical Lead
WSO2 Inc.; http://wso2.com
lean.enterprise.middleware

mobile: *+94772264165*
linkedin: *https://www.linkedin.com/in/godwin-amila-2ba26844/
<https://www.linkedin.com/in/godwin-amila-2ba26844/>*
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