How to concatenate two JSON responses in wso2 esb - json

Question

The two jsons i need to concatenate to convert it into a single valid json are :
{
"first": true,
"second": {
"name": "manoj",
"age": "45"
},
"third": {
"fourth": [{
"class": "test12",
"salary": "123456"
},
{
"class": "test23",
"salary": "15678"
}
],
"fifth": "hello"
}
}
and
[{
"item1": "123456",
"item2": "5678"
},
{
"item1": "8976",
"item2": "abcd"
}]
Is it possible to concatenate these two without using any jquery. I need something related to wso2 esb code. I tried using enrich and other mediators but no luck so far.

Answer 1

You can concat the jsons using WSO2 ESB Payload Factory mediator as follows,
<api xmlns="http://ws.apache.org/ns/synapse" name="ConcatAPI" context="/concat">
<resource methods="GET">
<inSequence>
<call>
<endpoint>
<http method="GET" uri-template="http://www.mocky.io/v2/56b2d88c13000057518945d4"/>
</endpoint>
</call>
<enrich>
<source type="body" clone="true"/>
<target type="property" property="first-json"/>
</enrich>
<log level="custom">
<property name="First json" expression="get-property('first-json')"/>
</log>
<call>
<endpoint>
<http method="GET" uri-template="http://www.mocky.io/v2/56b2d87d1300007c518945d3"/>
</endpoint>
</call>
<payloadFactory media-type="xml">
<format>
<completeJson xmlns="">
<firstjson>$1</firstjson>
<secondjson>$2</secondjson>
</completeJson>
</format>
<args>
<arg evaluator="xml" expression="get-property('first-json')"/>
<arg evaluator="xml" expression="$body"/>
</args>
</payloadFactory>
<property name="messageType" value="application/json" scope="axis2"/>
<send/>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
</api>
Note that i have retrieved your jsons from mocked services from mocky.io web site.
Thanks.