How to send nested JSON input to RESTful web service in Java?

Question

How can I send the following nested JSON input to REST web service and read the values in the service's class?

{
 "payload": {
   "objType": "",
      "props": {
        "propName1": "propValue1",
        "propName2": "propValue2"
      },
   "retProps": ["prop1", "prop2"]
   }
}

To read the JSON input which is not nested , I've created a class:

public class MessageInputJSON {

private String payload;
private String objType;
private String prop;
private String retProp;

    // Getters and Setters here
}

And to read the values, I have created the following class :

@POST
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)

public String readJSON(MessageInputJSON message) {

         String payload = message.getPayload();
         String objType = message.getObjType();

    }

But I do not know how to send the nested JSON input and read its value in Java

Answer 1

You need to type the transfer Object with the same hierarchy of the json, with your sample the input dto must look like this :

public class Payload {
 private String objType;
 Props PropsObject;
 ArrayList < Object > retProps = new ArrayList < Object > ();

Full object : https://codebeautify.org/json-to-java-converter/cb83de35