var express = require('express');
var app = express();
var bodyParser = require('body-parser');
var morgan = require('morgan');
var mongoose = require('mongoose');

//------------------------------------
//Configuration
//------------------------------------
var config = require('./config.js');
var port = process.env.PORT || config.SERVICE_PORT;
app.use(morgan('dev'));
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

//------------------------------------
//Routes
//------------------------------------
app.use('/admin',   require('./app/routes/admin.js'));
app.use('/',        require('./app/routes/guest.js'));
app.use('/chat',    require('./app/routes/chat.js'));

//------------------------------------
//Server Start
//------------------------------------
mongoose.connect(config.database);
app.listen(port);
console.log('server start at port ' + port);

...
router.route('/')
    .get(function(req,res){
        res.end('Welcome');
    })
    .post(function(req,res){
    UsersManager.login(req.body.username,req.body.password,function(err,user){
            if(err) throw err;
            if(!user){
                res.json({
                            success: false,
                            message: Const.notificationTokenAccessNOK
                        });
            }else{
                var token = TokenManager.createToken(user);
                res.json({
                            success: true,
                            message: Const.notificationTokenAccessOK,
                            token: token
                });
            }
        });
    });

module.exports = router;

import { Injectable } from '@angular/core';
import { Http, Headers } from '@angular/http';
import 'rxjs/add/operator/map';

@Injectable()
export class Recosh {

data: any;

constructor(public http: Http) {
    this.data = null;
}

login(id,pwd){
    let headers = new Headers();
    headers.append('Content-Type', 'application/json');
    this.http.post('http://localhost:8080/',
                    JSON.stringify({
                        username: id ,
                        password: pwd
                    }), {headers: headers})
                .subscribe(res => {
                    console.log(res.json());
                });
}
}