Iterating through JSON list in Mulesoft - json

Question

I've a JSON response that I'd like to iterate through and capture the values of incident
number, the longtitude, latitude as a group and send it to an SMS messaging service. I've tried
different approaches but I'm not able to get to these elements. I've tried to debug and use
different expressions without any luck. Suggestions are appreciated.
[
{
"type": " --T::00"
},
{
"address": "2720 E Madison St",
"longitude": "-122.296667",
"latitude": "47.623153",
"incident_number": "F110104004",
"type": "Medic Response",
"report_location": {
"needs_recoding": false,
"longitude": "-122.296667",
"latitude": "47.623153"
}
},
{
"address": "2260 1st Av S",
"longitude": "-122.334199",
"latitude": "47.583347",
"incident_number": "F110103709",
"type": "Aid Response",
"report_location": {
"needs_recoding": false,
"longitude": "-122.334199",
"latitude": "47.583347"
}
},
{
"address": "1930 Boren Av",
"longitude": "-122.333103",
"latitude": "47.617173",
"incident_number": "F110103707",
"type": "Aid Response",
"report_location": {
"needs_recoding": false,
"longitude": "-122.333103",
"latitude": "47.617173"
}
]
Here's the configuration file.
<flow name="seattleemergencyFlow1" doc:name="seattleemergencyFlow1">
<http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8900" path="get-emergency" doc:name="HTTP"/>
<http:outbound-endpoint exchange-pattern="request-response" host="data.seattle.gov" port="80" path="resource/kzjm-xkqj.json?" method="GET" contentType="application/json" doc:name="HTTP"/>
<json:json-to-object-transformer doc:name="JSON to Object" returnClass="java.util.List"/>
</flow>

Answer 1

After converting the json to a List<Object> using the json:json-to-object-transformer as you have. You should be able to just use any of Mule's collection features such as the foreach scope/router and then MEL expressions to access specific fields:
<foreach>
<logger level="ERROR" message="#[payload.address]" />
</foreach>

Answer 2

you also convert json to xml data using
<json:json-to-xml-transformer doc:name="json-to-xml"/>
transformer and provide the xpath expression on for-each scope as below
<foreach collection="#[xpath('---')]" batchSize="--" doc:name="for-each-account-batch">