define a route with path paramters in nodejs

1var users = {
2  'azat': {
3    email: 'hi@azat.co',
4    website: ' http://azat.co ',
5    blog: ' http://webapplog.com '
6  }
7};
8
9var findUserByUsername = function (username, callback) {
10  // Perform database query that calls callback when it's done
11  // This is our fake database
12  if (!users[username])
13    return callback(new Error(
14      'No user matching '
15       + username
16      )
17    );
18  return callback(null, users[username]);
19};
20
21app.get('/v1/users/:username', function(request, response, next) {
22  var username = request.params.username;
23  findUserByUsername(username, function(error, user) {
24    if (error) return next(error);
25    return response.render('user', user);
26  });
27});
28
29app.get('/v1/admin/:username', function(request, response, next) {
30  var username = request.params.username;
31  findUserByUsername(username, function(error, user) {
32    if (error) return next(error);
33    return response.render('admin', user);
34  });
35}); 
36

1var express = require('express');
2var fs  = require('fs');
3var app= express();
4 app.get('/index/profile/:id',function(req,res){
5    //  res.send('profile with id' + req.params.id)
6
7    
8    
9 });
10app.listen(3000,'127.0.0.1');
11console.log('lsitng');