How to parse/read JSON element using java script

[#1]

I am currently trying to parse my response which I am getting from my back end.

My response looks as

{
  "status": {
    "code": 400,
    "version": "1.0",
    "Id": "a817817b-79eb-4ceb-994d-b52a9e5d86bb",
    "errors": [
      {
        "message": "Bad data.", "type": "100001"
      }
    ]
  },
  "data": null
}

Trying to read the value of "code" from above JSON. My java script code looks as below.

var errorResponse= context.getVariable("response.content");
var httpStatusCode= errorResponse.status.code;
context.setVariable('flow.response.http.status.code', httpStatusCode);

The error I got:

Javascript runtime error: "TypeError: Cannot read property "code" from undefined.

Is there a way to read json elements?

[anilsr · Accepted solution]

@Shailendra ,

You need to JSON parse the response content string. Try below,

var errorResponse= context.getVariable("response.content");
var errorResponseObject = JSON.parse(errorResponse);
var httpStatusCode= errorResponseObject.status.code;
context.setVariable('flow.response.http.status.code', httpStatusCode);