Object to Json & Json to Object Transformer in Mule




Object to Json & Json to Object Transformer in Mule


JSON is now natively supported in Mule, meaning you can work with JSON documents and bind them automatically to Java objects.


JSON transformers have been added to make it easy to work with JSON encoded messages. We have used the excellent Jackson Framework which means Mule also supports JSON /Object bindings.

Object to Json Transformer : It converts java map object to json object.

Json to Object Transformer : It converts Json object to java map object.


flow example  :




In Json to Object transformer, we have to give return class as : java.util.Map




Logger out gives map object as payload shown below :






URL : http://localhost:8085/api/jsontoobject
Method : POST

Input : 


Output : 




XML project code :




<?xml version="1.0" encoding="UTF-8"?>

<mule xmlns:json="http://www.mulesoft.org/schema/mule/json" xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns:tracking="http://www.mulesoft.org/schema/mule/ee/tracking" xmlns:file="http://www.mulesoft.org/schema/mule/file" xmlns:mulexml="http://www.mulesoft.org/schema/mule/xml" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:spring="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/file http://www.mulesoft.org/schema/mule/file/current/mule-file.xsd
http://www.mulesoft.org/schema/mule/xml http://www.mulesoft.org/schema/mule/xml/current/mule-xml.xsd
http://www.mulesoft.org/schema/mule/ee/tracking http://www.mulesoft.org/schema/mule/ee/tracking/current/mule-tracking-ee.xsd
http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
http://www.mulesoft.org/schema/mule/json http://www.mulesoft.org/schema/mule/json/current/mule-json.xsd">
    <http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="8085" basePath="/api" doc:name="HTTP Listener Configuration"/>
    <file:connector name="File" outputPattern="input.json" readFromDirectory="src/main/resources" autoDelete="false" streaming="false" validateConnections="true" doc:name="File"/>
    <flow name="test_jsontoObject">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/jsontoobject" doc:name="HTTP"/>
        <byte-array-to-string-transformer doc:name="Byte Array to String"/>
        <json:json-to-object-transformer returnClass="java.util.Map" doc:name="JSON to Object"/>
        <logger message="#[payload]" level="INFO" doc:name="Logger"/>
        <json:object-to-json-transformer doc:name="Object to JSON"/>
    </flow>
</mule>