Hello 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);