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 stackoverflow.com/questions/8371274/… — Pankaj Kumar
– Pankaj Kumar, Commented Jun 6, 2018 at 10:04

Anand Jain · Accepted Answer · 2018-06-06 10:06:22Z

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 6, 2018 at 10:06

Anand Jain

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Mahesh Vayak · Accepted Answer · 2018-06-06 10:14:03Z

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 6, 2018 at 10:14

answered Jun 6, 2018 at 10:09

Mahesh Vayak

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3 Comments

Mahesh Vayak Over a year ago

Why are you can't get response.bod()?

H.Gheisari Over a year ago

because with retrofit It is not possible to get response body.

Mahesh Vayak Over a year ago

Who told you I am already using retrofit 2.0 I can get it why are you not get which version have you use?

Sandeep Parish · Accepted Answer · 2018-06-06 11:07:00Z

1

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.

edited Jun 6, 2018 at 11:07

answered Jun 6, 2018 at 10:05

Sandeep Parish

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5 Comments

H.Gheisari Over a year ago

of course it works. I want to do it via retrofit and Gson.

Sandeep Parish Over a year ago

@H.Gheisari I updated my answer try it and let me know if works

H.Gheisari Over a year ago

what is JSONResponse?

Sandeep Parish Over a year ago

It is response you getting in json fromet by hitting url

Sandeep Parish Over a year ago

and after it i converted it in string

Arnaud VdP · Accepted Answer · 2018-06-06 09:59:07Z

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 6, 2018 at 9:59

Arnaud VdP

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2 Comments

Arnaud VdP Over a year ago

Can you save the string before having it parsed? If so you can just add the tokens there. String result = "{" + response + "}"

Arnaud VdP Over a year ago

Otherwise you can check this link that also has a solution

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