mule remove json elements from json array - mule

Question

I had json input like below
"products": {
"p0": {
"productId": "110",
"productName": "bag"
},
"p1": {
"productId": "160",
"productName": "shoe"
},
"p2": {
"productId": "140",
productName": "watch"
}
}
From mule I want the output like the one below
[
{
"productId": "110",
"productName": "bag"
},
{
"productId": "160",
"productName": "shoe"
},
{
"productId": "140",
"productName": "watch"
}
]
Because I need to pass the above output format to other inbound.
Anyone help how to convert my input json into above output json.
Thanks in advance for all

Answer 1

You can achieve what you want using some MEL and json transformers:
<json:json-to-object-transformer
returnClass="java.util.HashMap" />
<set-payload value="#[($.value in payload.products.entrySet())]" />
<json:object-to-json-transformer />
If you're going to have more complex transformation, I would write a custom transformer, or script transformer using Groovys JsonBuilder and JsonSlurper or potentially Datamapper.

Answer 2

If you are using Mule 3.7 and above, you can do it simply and easily with the dataweave component :-
<flow name="Testlow">
<http:listener config-ref="HTTP_Listener_Configuration" path="/test" doc:name="HTTP"/>
<dw:transform-message doc:name="Transform Message">
<dw:set-payload><![CDATA[%dw 1.0
%output application/json
---
payload.products map (
$
)
]]></dw:set-payload>
</dw:transform-message>
</flow>