This document provides a tutorial for converting JSON to an object in Mule ESB in 5 minutes. It describes creating a simple Mule flow with an HTTP listener to receive JSON data. It then defines a Java POJO class called JsonClass to represent the object structure. The tutorial adds a JSON to Object transformer to the flow to convert the JSON to the JsonClass object. It concludes by testing the flow using Postman to send sample JSON data and confirm the conversion was successful by logging the transformed object.

1. Mule ESB
How to convert from Json to Object in 5 minutes

2. In this tutorial we will be creating an easy json to object converter using mule esb.
Let’s begin creating a simple flow with an http listener, in order to get some json sdata
from some external source:
Now, let’s create a java pojo class, called User, like this:

3. package com.mulechampion;
import java.io.Serializable;
public class JsonClass implements Serializable{
/**
*
*/
private static final long serialVersionUID = -5645625751838751914L;
private String name;
private String surname;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSurname() {
return surname;
}
public void setSurnme(String surnme) {
this.surname = surnme;
}
@Override
public String toString() {
return "JsonClass [name=" + name + ", surname=" + surname + "]";
}
}

4. Now we can put our Json to Object transformer in order to get the transformation:
For now, no further configuration is required for the component.
Let’s add the usual Logger component to show the transformation done on the console:

5. It’s time to start the server and get ready to test the application by calling the flow.
To do this, we will use postman as the http client, to create the request and get the
response.
Configure it like this:
Body (raw):
{
«name» : «usern»,
«surname» : «userns»
}
POST: http//localhost:8081/jsonToObject

6. Let’s now press «send» and see the result on the console:
Enjoy with the Mule!
HTTP_Listener_Configuration.worker.01]
org.mule.api.processor.LoggerMessageProcessor:
JsonClass [name=usern, surname=users]