Synchronously connecting to a socket in node js

Question

Synchronously connecting to a socket in node js

I have a simple node js server and I would like to connect to another socket, read data, and return it to the client.

http.createServer(function(req, res){
     var sock = new Socket();
        sock.connect(80, "www.google.com", function(){
            console.log("Connected to google..");
            sock.write("GET /\r\n\r\n");
        }); 
        sock.on("data", function(data){
            console.log(data.toString()); 
            res.writeHead(404, {"Content-type": "text/plain"});
            res.write(data, "binary");
            res.end(); 
            sock.end();
        });
        sock.on("end", function(){
            console.log("Disconnected from socket..");
        }); 
}, 8080);

But this obviously doesn't work because the call to data callback is asynchronous.

So how can I accomplish this with node js?

javascript
node.js

Answer 1

After adding the missing "require" statements and the server.listen() call to get the script to run, it works fine for me:

var http = require('http');
var Socket = require('net').Socket;
var server = http.createServer(function(req, res){
     var sock = new Socket();
        sock.connect(80, "www.google.com", function(){
            console.log("Connected to google..");
            sock.write("GET /\r\n\r\n");
        }); 
        sock.on("data", function(data){
            console.log(data.toString()); 
            res.writeHead(404, {"Content-type": "text/plain"});
            res.write(data, "binary");
            res.end(); 
            sock.end();
        });
        sock.on("end", function(){
            console.log("Disconnected from socket..");
        }); 
});
server.listen(8080);