// Initialize Kiteconnect using apiKey.
KiteConnect kiteSdk = new KiteConnect("your_apiKey");

// Set userId.
kiteSdk.setUserId("your_userId");

/* First you should get request_token, public_token using kitconnect login and then use request_token, public_token, api_secret to make any kiteconnect api call.
Get login url. Use this url in webview to login user, after authenticating user you will get requestToken. Use the same to get accessToken. */
String url = kiteSdk.getLoginUrl();

// Get accessToken as follows,
User user =  kiteSdk.generateSession("request_token", "your_apiSecret");

// Set request token and public token which are obtained from login process.
kiteSdk.setAccessToken(userModel.accessToken);
kiteSdk.setPublicToken(userModel.publicToken);

// Set session expiry callback.
kiteSdk.setSessionExpiryHook(new SessionExpiryHook() {
    @Override
    public void sessionExpired() {
        System.out.println("session expired");                    
    }
});

// Get margins returns margin model, you can pass equity or commodity as arguments to get margins of respective segments.
Margin margins = kiteSdk.getMargins("equity");
System.out.println(margins.available.cash);
System.out.println(margins.utilised.debits);

/** Place order method requires a orderParams argument which contains,
   * tradingsymbol, exchange, transaction_type, order_type, quantity, product, price, trigger_price, disclosed_quantity, validity
   * squareoff_value, stoploss_value, trailing_stoploss
   * and variety (value can be regular, bo, co, amo)
   * place order will return order model which will have only orderId in the order model
   * Following is an example param for LIMIT order,
   * if a call fails then KiteException will have error message in it
   * Success of this call implies only order has been placed successfully, not order execution. */

   OrderParams orderParams = new OrderParams();
   orderParams.quantity = 1;
   orderParams.orderType = Constants.ORDER_TYPE_LIMIT;
   orderParams.tradingsymbol = "ASHOKLEY";
   orderParams.product = Constants.PRODUCT_CNC;
   orderParams.exchange = Constants.EXCHANGE_NSE;
   orderParams.transactionType = Constants.TRANSACTION_TYPE_BUY;
   orderParams.validity = Constants.VALIDITY_DAY;
   orderParams.price = 122.2;
   orderParams.triggerPrice = 0.0;
   orderParams.tag = "myTag"; //tag is optional and it cannot be more than 8 characters and only alphanumeric is allowed

   Order order = kiteConnect.placeOrder(orderParams, Constants.VARIETY_REGULAR);
   System.out.println(order.orderId);

 /** To get live price use websocket connection.
         * It is recommended to use only one websocket connection at any point of time and make sure you stop connection, once user goes out of app.
         * custom url points to new endpoint which can be used till complete Kite Connect 3 migration is done. */
        KiteTicker tickerProvider = new KiteTicker(kiteConnect.getAccessToken(), kiteConnect.getApiKey());

        tickerProvider.setOnConnectedListener(new OnConnect() {
            @Override
            public void onConnected() {
                /** Subscribe ticks for token.
                 * By default, all tokens are subscribed for modeQuote.
                 * */
                tickerProvider.subscribe(tokens);
                tickerProvider.setMode(tokens, KiteTicker.modeFull);
            }
        });

        tickerProvider.setOnDisconnectedListener(new OnDisconnect() {
            @Override
            public void onDisconnected() {
                // your code goes here
            }
        });

        /** Set listener to get order updates.*/
        tickerProvider.setOnOrderUpdateListener(new OnOrderUpdate() {
            @Override
            public void onOrderUpdate(Order order) {
                System.out.println("order update "+order.orderId);
            }
        });

        tickerProvider.setOnTickerArrivalListener(new OnTicks() {
            @Override
            public void onTicks(ArrayList<Tick> ticks) {
                NumberFormat formatter = new DecimalFormat();
                System.out.println("ticks size "+ticks.size());
                if(ticks.size() > 0) {
                    System.out.println("last price "+ticks.get(0).getLastTradedPrice());
                    System.out.println("open interest "+formatter.format(ticks.get(0).getOi()));
                    System.out.println("day high OI "+formatter.format(ticks.get(0).getOpenInterestDayHigh()));
                    System.out.println("day low OI "+formatter.format(ticks.get(0).getOpenInterestDayLow()));
                    System.out.println("change "+formatter.format(ticks.get(0).getChange()));
                    System.out.println("tick timestamp "+ticks.get(0).getTickTimestamp());
                    System.out.println("tick timestamp date "+ticks.get(0).getTickTimestamp());
                    System.out.println("last traded time "+ticks.get(0).getLastTradedTime());
                    System.out.println(ticks.get(0).getMarketDepth().get("buy").size());
                }
            }
        });

        tickerProvider.setTryReconnection(true);
        //maximum retries and should be greater than 0
        tickerProvider.setMaximumRetries(10);
        //set maximum retry interval in seconds
        tickerProvider.setMaximumRetryInterval(30);

        /** connects to com.zerodhatech.com.zerodhatech.ticker server for getting live quotes*/
        tickerProvider.connect();

        /** You can check, if websocket connection is open or not using the following method.*/
        boolean isConnected = tickerProvider.isConnectionOpen();
        System.out.println(isConnected);

        /** set mode is used to set mode in which you need tick for list of tokens.
         * Ticker allows three modes, modeFull, modeQuote, modeLTP.
         * For getting only last traded price, use modeLTP
         * For getting last traded price, last traded quantity, average price, volume traded today, total sell quantity and total buy quantity, open, high, low, close, change, use modeQuote
         * For getting all data with depth, use modeFull*/
        tickerProvider.setMode(tokens, KiteTicker.modeLTP);

        // Unsubscribe for a token.
        tickerProvider.unsubscribe(tokens);

        // After using com.zerodhatech.com.zerodhatech.ticker, close websocket connection.
        tickerProvider.disconnect();

KiteConnect kiteSdk = new KiteConnect("your_apiKey");

KiteTicker tickerProvider = new KiteTicker(kiteConnect.getUserId(), kiteConnect.getAccessToken(), kiteConnect.getApiKey());