node JS server connection

Question

I'm trying to use the code below but it doesn't work for me because the server doesn't connect and there's no error in the console.

var PORT=8080;
var http=require('http');
var http=require('swig');
var http=require('url');

exports.startServer=function (PORT){
var server=http.createServer(function(req,res){
var page=url.parse(req.url).pathname;
if(page=='/'){
res.writeHead(200,{'Content-Type':'text/html'});
res.write(swig.renderFile('templates/home.tpl',{
name :'user'

})
);
} else{
    res.writeHead(404,{'Content-Type':'text/html'});
    res.writeHead('<h1>Error 404 : page not found</h1>');
}
res.end();

});
server.listen(PORT);
console.log('Server running on'+ PORT);
}

Answer 1

The reason I think is that you have assigned the variable http for three times, which makes that only the last one takes effect.

Try to replace

var http=require('http');
var http=require('swig');
var http=require('url');

with

var http=require('http');
var swig=require('swig');
var url=require('url');

Answer 2

check any other server running on same port or not

if it is running, change port number

var port = process.env.PORT | 3000;

change this

var http=require('http');
var swig=require('swig');
var url=require('url');

Better to use express.

var express = require('express');
var app = express();
var port = process.env.PORT | 3000;
var server = app.listen(port,'0.0.0.0',function(){
    var host = server.address().address;
    var port = server.address().port;
    console.log("Server listen to : "+host+":"+port);
});