Node.js server and client, run on Raspberry Pi

Last post implement Node.js net server side, connected with client in Android device. This post show the client side implemented in Node.js.



node_client.js

var net = require('net');

var client = net.connect({port: 8081, host: '192.168.1.105'},
                function() {
                    console.log('connected');
                    client.write('world!\r\n');
                });

client.on('data', 
    function(data) {
        console.log(data.toString());
        client.end();
    }
);

client.on('end', 
    function() {
        console.log('client disconnected');
    }
);

node_server.js (same as in last post)

var os=require('os');
var net=require('net');

var networkInterfaces=os.networkInterfaces();

var port = 8081;
var count = 1;

function callback_server_connection(socket){
    var remoteAddress = socket.remoteAddress;
    var remotePort = socket.remotePort;
    socket.setNoDelay(true);
    console.log("connected: ", remoteAddress, " : ", remotePort);
    
    var msg = 'Hello ' + remoteAddress + ' : ' +  remotePort + '\r\n'
        + "You are #" + count + '\r\n';
    count++;

    socket.end(msg);
    
    socket.on('data', function (data) {
        console.log(data.toString());
    });
    
    socket.on('end', function () {
        console.log("ended: ", remoteAddress, " : ", remotePort);
    });
}

console.log("http://android-er.blogspot.com/");
console.log("http://helloraspberrypi.blogspot.com/");

console.log("node.js net server is waiting:");
for (var interface in networkInterfaces) {

    networkInterfaces[interface].forEach(function(details){
        
        if ((details.family=='IPv4') && !details.internal) {
            console.log(interface, details.address);  
        }
    });
}

console.log("port: ", port);

var netServer = net.createServer(callback_server_connection);
netServer.listen(port);