nodejs/app-websocket.js

var WebSocketClient = require('websocket').client;
var client = new WebSocketClient();

client.on('connectFailed', function(error) {
    console.log('Connect Error: ' + error.toString());
});
 
client.on('connect', function(connection) {
    console.log('WebSocket Client Connected');
    connection.on('error', function(error) {
        console.log("Connection Error: " + error.toString());
    });
    connection.on('close', function() {
        console.log('echo-protocol Connection Closed');
    });
    connection.on('message', function(message) {
        if (message.type === 'utf8') {
            console.log("Received: '" + message.utf8Data + "'");
        }
    });
    
    function sendNumber() {
        if (connection.connected) {
            var number = Math.round(Math.random() * 0xFFFFFF);
            connection.sendUTF(number.toString());
            setTimeout(sendNumber, 1000);
        }
    }
    sendNumber();
});
 
client.connect('ws://localhost:8080/greeter', 'echo-protocol');



/*var W3CWebSocket = require('websocket').w3cwebsocket;
var client = new W3CWebSocket('ws://localhost:8080/', 'echo-protocol');
 
client.onerror = function() {
    console.log('Connection Error');
};
 
client.onopen = function() {
    console.log('WebSocket Client Connected');
 
    function sendNumber() {
        if (client.readyState === client.OPEN) {
            var number = Math.round(Math.random() * 0xFFFFFF);
            client.send(number.toString());
            setTimeout(sendNumber, 1000);
        }
    }
    sendNumber();
};
 
client.onclose = function() {
    console.log('echo-protocol Client Closed');
};
 
client.onmessage = function(e) {
    if (typeof e.data === 'string') {
        console.log("Received: '" + e.data + "'");
    }
};
*/