How can format JSON repsonse in Loopback like CakePHP response?

[Ha Le]

I want to convert back-end API  from CakePHP to Loopback, I try to convert some models that have relations, but they do not return JSON like CakePHP. I want to keep CakePHP JSON format but I don't know how to do that in Loopback. Does anyone know how can change format response JSON like CakePHP as below:

 {

        "Task": {

            "id": "1",

            "user_id": "13",

            "project_id": "2",

            "created": "2017-03-06 15:03:27",

            "modified": "2017-03-06 15:03:27",

            "is_deleted": false

        },

        "Project": {

            "id": "2",
            "project_name":"Hitara Farmer",

            "status": "On-progress",

            "description": null

        },

        "User": {

            "id": "13",

            "email": "us...@example.com",

            "first_name": "John",

            "last_name": "Doe",

            "fullname": "John Doe",

            "mobile_no": "024570000",

            "status": "1",

            "picture": "Cornelia.jpg",

            "is_deleted": false,

            "team": null,

            "company": null,

            "contact_id": null,

            "modified": "2017-03-21 08:50:51",

            "created": null,

        }

}

Thanks,

Ha Le