How to send JSON Array in form-data in volley

Question

I am unable to send JSON Array to the server using volley in form-data. My code as follows:

StringRequest sr = new StringRequest(Request.Method.POST, url,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                Log.e("response_det", response);
            }
        },
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Log.e("response_det", "" + error.getMessage() + "," + error.toString());
            }
        }) {
    @Override
    protected Map<String, String> getParams() {
        Map<String, String> params = new HashMap<>();
        params.put("phone", "XXXXXXXXXX");
        params.put("booking_id[0]", "27829929");
        params.put("booking_id[1]", "37798393");
        return params;
    }

    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {

        Map<String, String> params = new HashMap<>();

        params.put("Content-Type", "application/x-www-form-urlencoded");

        return params;
    }
};

I am attaching a screenshot of sample postman collection

SO basically I am sending two parameters, one is a normal string and another one is a JSONArray. Please tell me what am I doing wrong.

I am following https://stackoverflow.com/a/27091088/3022836 post the only difference in my case i have an extra JSON Array.

which parameter you are sending as json array booking_id[0] or booking_id[1] — Sandeep dhiman, May 09 '17 at 10:39
Downvoting is okay but at least care to explain why, because I have already tried a lot of approaches. I am not just posting it without any research. — Kunu, May 09 '17 at 11:29
And someone is tagging it as off-topic. Come on it might be low standard question but not at all off-topic. — Kunu, May 09 '17 at 11:33

Sandeep dhiman · Answer 1 · 2017-05-09T11:12:26.490

Use below code sending jsonArray

subsIdArraylist = pauseListAdapter.getIdList();// for example 
            quantityArray = pauseListAdapter.getQntyArray(); // for example

            JSONArray jsonArray = new JSONArray();

            if (subsIdArraylist.size() > 0) {
                for (int i = 0; i < subsIdArraylist.size(); i++) {
                    try {

                        JSONObject jsonObject = new JSONObject();
                        jsonObject.put(AppConstants.KEY_ID, Integer.parseInt(subsIdArraylist.get(i)));
                        jsonObject.put(AppConstants.KEY_QTY, quantityArray.get(i));
                        jsonArray.put(i, jsonObject);
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            }
    and then in your getParams method put this jsonarray <br>
@Override
protected Map<String, String> getParams() {
    Map<String, String> params = new HashMap<>();
    params.put("phone", "XXXXXXXXXX");
    params.put("booking_id", jsonArray.toString());

    return params;
}

check now I have changed params.put("booking_id[0]",jsonArray.toString) to params.put("booking_id",jsonArray.toString()) — Sandeep dhiman, May 09 '17 at 11:15

score 0 · Answer 2 · answered May 09 '17 at 11:27

0

Do like what @Sandeep dhiman suggest and then override contentType to be application json

public String getBodyContentType()
    {
        return "application/json";
    }

answered May 09 '17 at 11:27

Basil Battikhi

2,638
1
18
34

I tried your approach as well, however, content-type is "application/x-www-form-urlencoded" not "application/json". – Kunu May 09 '17 at 11:31
What is your api contentType expect ? and what is your server language ? – Basil Battikhi May 09 '17 at 11:32
Then the content type should be by default x-www-form-urlencoded you dont need to override anything if you post some server side code we could help – Basil Battikhi May 09 '17 at 11:34
I don't have access to server side code. However, it's working in postman. So it's just something I am doing wrong in Android side. – Kunu May 09 '17 at 11:41
take a look at this thread :) http://stackoverflow.com/questions/33573803/how-to-send-a-post-request-using-volley-with-string-body – Basil Battikhi May 09 '17 at 11:45
Still no luck @Basil – Kunu May 09 '17 at 12:51

score 0 · Answer 3 · answered May 18 '17 at 13:48

It Works Fine for Json Array

final String mRequestBody = jsonArray.toString();

        StringRequest request = new StringRequest(Request.Method.POST, CreateChatRoomUrl, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                if (!response.equals(null)) {
                    Log.e("Response", response);
                } else {
                    Log.e("Response"," Data Null");
                }
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Log.e("error Response", "" + error);
            }
        }) {
            @Override
            public byte[] getBody() throws AuthFailureError {
                try {
                    return mRequestBody == null ? null : mRequestBody.getBytes("utf-8");
                } catch (UnsupportedEncodingException uee) {
                    VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s", mRequestBody, "utf-8");
                    uee.printStackTrace();
                    return null;
                }
            }
            @Override
            public Map<String, String> getHeaders() throws AuthFailureError {
                Map<String, String> params = new HashMap<String, String>();
                params.put("Content-Type", "application/json; charset=UTF-8"); 
                return params;
            }
        };
        RequestQueue queue = Volley.newRequestQueue(context);
        queue.add(request);

How to send JSON Array in form-data in volley

3 Answers3