Error on getting Order Update Via Websocket Java

I am already using latest library.

Hi Sujith,

Simply while placing order I got this exception via websocket order update. May be JSON response which comes from server via websocket like below:

{"type":"order","order_id":"200416001702034","variety":"regular","transaction_type":"BUY","quantity":20,"average_price":0,"exchange":"NFO","tradingsymbol":"BANKNIFTY2041618700PE","status":"REJECTED","status_message":"Insufficient funds. Required margin is 3198.00 but available margin is 0.00.","meta":{}}

Above JSON response is not in appropriate structure and it does not contain "data" key. To reproduce this you have to place order from an account which contains 0 funds and simply print JSON response like this:

//===================================================
@Override
 public void onTextMessage(WebSocket websocket, String message) {
      parseTextMessage(message);
 }

//===================================================
 /** Parses incoming text message.*/
    private void parseTextMessage(String message) {
       // This message contains JSON reponse described above.
        System.out.println("Order update JSON response is===>"+message);
        JSONObject data;
        try {
            data = new JSONObject(message);
            if(!data.has("type")){
                return;
            }

            String type = data.getString("type");
            if(type.equals("order")) {
                if(orderUpdateListener != null) {
                    orderUpdateListener.onOrderUpdate(getOrder(data));
                }
            }

            if(type.equals("error")) {
                if(onErrorListener != null) {
                    onErrorListener.onError(data.getString("data"));
                }
            }

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

Please read comment above this line "return gson.fromJson(String.valueOf(data.get("data")), Order.class);" 
//===================================================
    public Order getOrder(JSONObject data) {
        GsonBuilder gsonBuilder = new GsonBuilder();
        gsonBuilder.registerTypeAdapter(Date.class, new JsonDeserializer<Date>() {

            @Override
            public Date deserialize(JsonElement jsonElement, Type type, JsonDeserializationContext jsonDeserializationContext) throws JsonParseException {
                try {
                    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                    return format.parse(jsonElement.getAsString());
                } catch (ParseException e) {
                    return null;
                }
            }
        });
        Gson gson = gsonBuilder.setDateFormat("yyyy-MM-dd HH:mm:ss").create();

        // May be this line is cause for that exception. Because you want to get order JSON by using "data"  key which actually not in passed JSON Object
        return gson.fromJson(String.valueOf(data.get("data")), Order.class);  
    }

Maybe this JSON response should be like below JSON format which is described in https://kite.trade/docs/connect/v3/orders/ to parse in Order Model appropriately.

{
  "status": "success",
  "data": [{
    "order_id": "151220000000000",
    "parent_order_id": "151210000000000",
    "exchange_order_id": null,
    "placed_by": "AB0012",
    "variety": "regular",
    "status": "REJECTED",

    "tradingsymbol": "ACC",
    "exchange": "NSE",
    "instrument_token": 22,
    "transaction_type": "BUY",
    "order_type": "MARKET",
    "product": "NRML",
    "validity": "DAY",

    "price": 0.0,
    "quantity": 75,
    "trigger_price": 0.0,

    "average_price": 0.0,
    "pending_quantity": 0,
    "filled_quantity": 0,
    "disclosed_quantity": 0,
    "market_protection": 0,

    "order_timestamp": "2015-12-20 15:01:43",
    "exchange_timestamp": null,

    "status_message": "RMS:Margin Exceeds, Required:0, Available:0",
    "tag": null,
    "meta": {}
  }]
}

Now please go through this and do the needful ASAP.

But Sujith really an am getting this exception. Please check for all websocket server endpoints response. I don,t have much scope to debug it.

Hi Sujith,
Did you find cause?