Can't get JSON into array from POST request

Question

I'm using the Unirest library to parse some JSON I'm getting from a MAshape API. I'm new to making HTTP requests in Java, and I'm having trouble understanding the error.

The function I made is:

public ArrayList<String> httpPost(int year) {
    HttpResponse<String> response = null;
    try {
        response = Unirest.post("https://--------.p.mashape.com/v1/calculate/" + year)
                .header("X-Mashape-Key", "--------------------------")
                .header("Content-Type", "application/x-www-form-urlencoded")
                .header("Accept", "application/json")
                //.field("blabla", "blabla")
                .field("filing_status", myFS)
                .field("pay_periods", myPP)
                .field("pay_rate", getGrossPay())
                .field("state", myState)
                .asString();
    } catch (UnirestException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // retrieve the parsed JSONObject from the response
    JSONObject myObj = new JSONObject(response);
    JSONArray results = new JSONArray();
    try {
        results = myObj.getJSONArray("annual"));
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    ArrayList<String> list = new ArrayList<String>(); 
    if (results != null) { 
       int len = results.length();
       for (int i=0;i<len;i++){ 
        try {
            list.add(results.get(i).toString());
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
       } 
    }
    return list;
}

I get the error:

org.json.JSONException: JSONObject["annual"] not found

So I outputted the response variable to a file, and the file had com.mashape.unirest.http.HttpResponse@161b062a in it. I don't know where that came from.

Just to check, I used hurl.it and the same response I'm putting in to my program yields a successful response:

{
  "annual": {
    "state": {
      "amount": 68232.65
    },
    "fica": {
      "amount": 91800
    },
    "federal": {
      "amount": 418014.8
    }
  },
  "per_pay_period": {
    "state": {
      "amount": 5686.05
     },
     "fica": {
      "amount": 7650
    },
    "federal": {
      "amount": 34834.57
    }
  }
}

I tried changing the type of response from String to JsonNode but it didn't work and I don't really know how to work with that anyway. I added all the required libraries as well. Any help?

Answer 1

Use myObj.getJSONObject("annual");