Compiling websocket code

rafactor.bal

import ballerina.net.http;
import ballerina.io;
import ballerina.runtime;

endpoint http:ServiceEndpoint ep1 {
    port:9090
};

@http:WebSocketServiceConfig {
    basePath:"/basic/ws"
}
service<http: WebSocketService > hello bind ep1{

    string ping = "ping";
    blob pingData = ping.toBlob("UTF-8");
    onUpgrade ( endpoint conn, http:Request req) {
        io: println("\nNew client hello");
        conn->upgradeToWebSocket({"some":"world"});
//conn->cancelUpgradeToWebSocket(1001, "Sorry leaving");
}


    onOpen ( endpoint conn) {
        io: println("\nNew client connected");
    }
    onTextMessage ( endpoint conn, http:TextFrame frame) {
        io: println("\ntext message: " + frame. text + " & is final fragment: " + frame. isFinalFragment);
        string text = frame.text;

        if (text == "ping") {
            io:println("Pinging...");
            conn->ping( pingData);
        } else if (text == "closeMe") {
            conn->closeConnection(1001, "You asked me to close connection");
        } else {
            conn->pushText("You said: " + frame.text);
        }
    }

    onBinaryMessage(endpoint conn, http:BinaryFrame frame) {
        io: println("\nNew binary message received");
        blob b = frame.data;
        io: println("UTF-8 decoded binary message: " + b. toString("UTF-8"));
        conn-> pushBinary(b);
    }

    onPing(endpoint conn, http:PingFrame frame) {
        conn-> pong(frame. data);
    }

    onPong( endpoint conn, http:PongFrame frame) {
        io: println("Pong received");
    }

    onIdleTimeout( endpoint conn) {
        io: println("\nReached idle timeout");
        io: println("Closing connection ");
        conn-> closeConnection(1001, "Connection timeout");
    }

    onClose( endpoint conn, http:CloseFrame closeFrame) {
        io: println("\nClient left with status code " + closeFrame. statusCode + " because " + closeFrame. reason);
    }
}

Working code:

var ws = new WebSocket("ws://localhost:9090/basic/ws");
ws.onmessage = function(frame) {console.log(frame.data)};
ws.onclose = function(frame) {console.log(frame)};
ws.send("hello world");
ws.send("ping");
ws.close(1000, "I want to go");