Java

Binary.com Tick Stream

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Tick Stream Request -- Initiate a continuous stream of spot price updates for a given symbol. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.Rest;
import com.chilkatsoft.chilkat2.WebSocket;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        WebSocket ws = new WebSocket();

        // For brevity, this example does not check for errors when etablishing the WebSocket connection.
        // See Establish WebSocket Connection for more complete sample code for making the connection.

        Rest rest = new Rest();

        // Connect to ws.binaryws.com
        rest.connect("ws.binaryws.com", 443, true, false);
        ws.useConnection(rest);
        ws.addClientHeaders();

        // My app_id is 12332.  You'll wnat to use your own...
        String responseBody = rest.fullRequestNoBody("GET", "/websockets/v3?app_id=12332");
        try {
            ws.validateServerHandshake();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            System.out.println(responseBody);
            System.out.println(rest.getResponseHeader());
            return;
        }

        // Build and send the following message:

        // {
        //   "ticks": "R_50",
        //   "subscribe": 1
        // }

        JsonObject json = new JsonObject();
        json.appendString("ticks", "R_50");
        json.appendInt("subscribe", 1);

        // Send a full message in a single frame
        boolean finalFrame = true;
        try {
            ws.sendFrame(json.emit(), finalFrame);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        JsonObject jsonTickData = new JsonObject();
        jsonTickData.setEmitCompact(false);

        // Begin reading the tick stream response.
        // We'll just read the 1st 10 updates and then exit..
        int numTicksReceived = 0;
        while (numTicksReceived < 5) {
            try {
                ws.readFrame();
            } catch (ChilkatException e) {
                System.out.println("Failed to receive a frame");
                System.out.println("ReadFrame fail reason = " + ws.getReadFrameFailReason());
                System.out.println(e.getLastErrorText());
                return;
            }

            // The responses we desire are in Text frames, where the opcode = 1.
            if (ws.getFrameOpcodeInt() == 1) {
                String receivedJson = ws.getFrameData();

                jsonTickData.load(receivedJson);
                System.out.println(jsonTickData.emit());

                numTicksReceived = numTicksReceived + 1;
            }
        }

        // Close the websocket connection.
        try {
            ws.sendClose(true, 1000, "Closing this websocket.");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Read the Close response.
        try {
            ws.readFrame();
        } catch (ChilkatException e) {
            System.out.println("ReadFrame fail reason = " + ws.getReadFrameFailReason());
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Success.");

        // The output of the above code is shown here:

        // {
        //   "echo_req": {
        //     "subscribe": 1,
        //     "ticks": "R_50"
        //   },
        //   "msg_type": "tick",
        //   "tick": {
        //     "ask": "373.8725",
        //     "bid": "373.8325",
        //     "epoch": "1517437456",
        //     "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9",
        //     "quote": "373.8525",
        //     "symbol": "R_50"
        //   }
        // }
        //
        // {
        //   "echo_req": {
        //     "subscribe": 1,
        //     "ticks": "R_50"
        //   },
        //   "msg_type": "tick",
        //   "tick": {
        //     "ask": "373.7952",
        //     "bid": "373.7552",
        //     "epoch": "1517437458",
        //     "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9",
        //     "quote": "373.7752",
        //     "symbol": "R_50"
        //   }
        // }
        //
        // {
        //   "echo_req": {
        //     "subscribe": 1,
        //     "ticks": "R_50"
        //   },
        //   "msg_type": "tick",
        //   "tick": {
        //     "ask": "373.8638",
        //     "bid": "373.8238",
        //     "epoch": "1517437460",
        //     "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9",
        //     "quote": "373.8438",
        //     "symbol": "R_50"
        //   }
        // }
        //
        // {
        //   "echo_req": {
        //     "subscribe": 1,
        //     "ticks": "R_50"
        //   },
        //   "msg_type": "tick",
        //   "tick": {
        //     "ask": "373.7636",
        //     "bid": "373.7236",
        //     "epoch": "1517437462",
        //     "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9",
        //     "quote": "373.7436",
        //     "symbol": "R_50"
        //   }
        // }
        //
        // {
        //   "echo_req": {
        //     "subscribe": 1,
        //     "ticks": "R_50"
        //   },
        //   "msg_type": "tick",
        //   "tick": {
        //     "ask": "373.6870",
        //     "bid": "373.6470",
        //     "epoch": "1517437464",
        //     "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9",
        //     "quote": "373.6670",
        //     "symbol": "R_50"
        //   }
        // }
        //
        // Success.
    }
}