How can I parse array of arrays JSON with Retrofit?

Question

I call binance- api and response is like this:

[
 [
    1528265700000,
    "606.84000000",
    "609.50000000",
    "606.84000000",
    "609.50000000",
    "399.45771000",
    1528266599999,
    "242985.40248060",
    415,
    "200.23538000",
    "121838.16910200",
    "0"
 ],
 [
    1528266600000,
    "609.50000000",
    "609.58000000",
    "606.88000000",
    "608.11000000",
    "1328.29962000",
    1528267499999,
    "807439.07315600",
    709,
    "220.23076000",
    "133950.90569850",
    "0"
]

]

it has no json object. When I use retrofit, I get

JsonSyntaxException : Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 3 path $[0]

How can I parse it?

You need to play around Arrays. This is absolutely possible and you can do it. you need to look into https://stackoverflow.com/questions/8371274/how-to-parse-json-array-with-gson — Pankaj Kumar, Jun 06 '18 at 10:04

Sandeep Parish · Answer 1 · 2018-06-06T11:07:00.187

Use it something like this and please try to create your child array to object otherwise you confused to get data from child array because you need to use this 0,1,2,3.... as your key.

 private void loadJson() {

        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl("you api url")
                .addConverterFactory(GsonConverterFactory.create())
                .build();
        RequestInterface request = retrofit.create(RequestInterface.class);
        Call<JSONResponse> call = request.getJSON();
        call.enqueue(new Callback<JSONResponse>() {
            @Override
            public void onResponse(Call<JSONResponse> call, Response<JSONResponse> res) {

                JSONResponse response = res.body();
                try {
                    JSONArray json = new JSONArray(""+response);
                    for (int i = 0; i < json.length(); i++) {

                        JSONArray arrayInArray = json.getJSONArray(i);

                        for (int j = 0; j < arrayInArray.length(); j++) {
                            Log.e("Here is", "" + arrayInArray.getString(j));
                        }

                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void onFailure(Call<JSONResponse> call, Throwable t) {
                Log.d("Error",t.getMessage());
            }
        });
}

Let me know if it works for you.

@H.Gheisari I updated my answer try it and let me know if works — Sandeep Parish, Jun 06 '18 at 10:18

score 1 · Answer 2 · answered Jun 06 '18 at 10:06

1

You need to parse manually this json. Please check below solution:-

 JSONArray jsonArray = new JSONArray(response);
    for(int i=0;i<jsonArray.length();i++){
        String value = jsonArray.get(i);
    }

answered Jun 06 '18 at 10:06

Anand Jain

2,365
7
40
66

Mahesh Vayak · Answer 3 · 2018-06-06T10:14:03.007

1

You should to parse API response like below code:

  String result = response.body().string();
  JSONArray jsonArray = new JSONArray(result);
  for(int i=0;i<jsonArray.length();i++){
       JSONArray jsonArrayRow = jsonArray.getJSONArray(i);
       for (int j = 0; j < jsonArrayRow.length(); j++) {
                 String data=jsonArrayRow.getString(j);
         }
  }

Hope this help you...if you need any help you can ask

edited Jun 06 '18 at 10:14

answered Jun 06 '18 at 10:09

Mahesh Vayak

1,056
12
25

Why are you can't get response.bod()? – Mahesh Vayak Jun 06 '18 at 10:17
because with retrofit It is not possible to get response body. – H.Gheisari Jun 06 '18 at 10:55
Who told you I am already using retrofit 2.0 I can get it why are you not get which version have you use? – Mahesh Vayak Jun 06 '18 at 10:57

score 0 · Answer 4 · answered Jun 06 '18 at 09:59

0

Retrofit expects the json object to start with a { and end with a } Maybe you can add them if they're not already there?

answered Jun 06 '18 at 09:59

Arnaud VdP

227
1
9

Can you save the string before having it parsed? If so you can just add the tokens there. `String result = "{" + response + "}"` – Arnaud VdP Jun 06 '18 at 10:02
Otherwise you can check [this](https://stackoverflow.com/questions/28628513/how-to-parse-json-array-without-any-object-in-retrofit) link that also has a solution – Arnaud VdP Jun 06 '18 at 10:05

How can I parse array of arrays JSON with Retrofit?

4 Answers4