Rest API - Response with list of viewmodels

[Smitha N <sm...@gmail.com>]

Hello,

I am trying to use REST API in my Apache ISIS application.

I have an action which on invoke should return a response in this format:


Result extends Dto{

String type;
int code;
List<ViewModel-A> articles;
}

ViewModel-A extends Dto{

String technology;
String supplier;

SortedSet<ViewModel-B> sortedModel;

Address address;

}

This is the response I get:

{
    "$$href": "http://localhost:8080/restful/objects/Result/
    "code": 0,
    "articles": [
        {
            "$$href": "http://localhost:8080/restful/objects/ViewModel-A/,
            "$$title": "ViewModel A",
            "$$instanceId": ,
            "address": {
                "rel": "urn:org.restfulobjects:rels/value",
                "href": "http://localhost:8080/restful/objects/Address/",
                "method": "GET",
                "type": "application/json;profile=\"
urn:org.restfulobjects:repr-types/object\"",
                "title": "Address"
            },
            "supplier": "supplier-name",
            "technology": "technology-name"
        },
        {
            "$$href": "http://localhost:8080/restful/objects/ViewModel-A/,
            "$$title": "ViewModel A",
            "$$instanceId": ,
            "address": {
                "rel": "urn:org.restfulobjects:rels/value",
                "href": "http://localhost:8080/restful/objects/Address/",
                "method": "GET",
                "type": "application/json;profile=\"
urn:org.restfulobjects:repr-types/object\"",
                "title": "Address"
            },
            "supplier": "supplier-name1",
            "technology": "technology-name1"
        },
        {
            "$$href": "http://localhost:8080/restful/objects/ViewModel-A/,
            "$$title": "ViewModel A",
            "$$instanceId": ,
            "address": {
                "rel": "urn:org.restfulobjects:rels/value",
                "href": "Address",
                "method": "GET",
                "type": "application/json;profile=\"
urn:org.restfulobjects:repr-types/object\"",
                "title": "Address"
            },
            "supplier": "supplier-name1",
            "technology": "technology-name2"
        }
    ],
    "type": "type"
}

As it can be seen in the response, even though there are values, the
ViewModel-B, sortedModel property in ViewModel-A class is not shown.

Is there any better way to retrieve the properties of these nested view
models (instead of links to these classes)?
Also I am not sure why the properties of ViewModel-B (sortedModel property
of ViewModel-A) are not populated.

Please let me know how to resolve this issue. How do we get a more
flattened structure of the nested class properties in the response?

I am setting Accept  request header as
application/json;profile="urn:org.apache.isis/v1".

When I post this request, I get the response but it doesnot



Regards
Smitha