var http = require("http")
var path = require("path")
var express = require("express")

c'est un middleware qui permet de logger le requet dans la console 
tu n'es pas obliger de tout réinventer

surtout n'oublie pas de faire un 
npm install morgan body-parser

var logger = require("morgan")
var bodyParser = require("body-parser") // ça permet de parser la requet
var app = express()

J'utiliser mongoose à la place de mongodb
mongoose ofre plusieur avantage que mongodb
dans le sens ou a connection est faite au debut et on peut utiliser le model partout ou l'on veu

Visite le site de mongoose pour la documentation (

var mongoose = require("mongoose")

Je définit le Schéma qui n'est tout autre que la structure de mes document qui sont dans la base de donnée

var UserSchema = new mongoose.Schema({
    username: { type: String },
    password: { type: String },
    age: { type: Number}

puis je définit le model qui va me permettre de faire des requete à la base de donnée
et un point très très important c'est que le nom du model tu dois les mettres en anglais
lorsque tu as par exemple comme `persone` nom dans le model dans la base de donne ça sera stocker comme `people`, `stydy` => `stydies`
`user` => `users` ainsi de suite

var UserModel = mongoose.model("User", UserSchema)

var device = require("express-device")
var app = express()

app.set("port", process.env.PORT || 3000)
app.set("views", path.join(__dirname, "views"))
app.set("view engine", "ejs")

les valeur disponible sont 
combined || common || dev || short || tiny
essay chacune de ces valeur tu va voir la sortie dans la console

app.use(bodyParser.urlencoded({ extended : true }))
app.use(express.static(path.join(__dirname, 'public')))

app.get("/", function(request, response) {
    var users = [] // Un tableau qui va contenir les utilisateur à passer à la vue
    UserModel.find({}, function(err, users) {
        if(err) throw err
        else {
            users.push(users) // j'étant le tableau que j'ai declarer précédemment avec les résultats obtenu de la base de donnée

    je passe comme deuxième paramètre un object de valeur qui seront utiliser dans la vue index comme `users`

    response.render("index", {users: users})
    console.log("Un visiteur demande la page index");

app.use(function(request, response, next) {
    response.setHeader('Content-Type', 'text/plain')
    response.status(404).send('Page introuvable')
    console.log("Un utilisateur demande une page introuvable")

var server = http.createServer(app)

var io = require("").listen(server)

io.sockets.on('connection', function (socket) {
    socket.emit('message', 'Vous êtes bien connecté !');

server.listen(app.get("port"), function() {
    console.log("The server is running on http://localhost:%s", app.get("port"))

Edit: here is something (commented in French -- it comes from the french FAQ of fr.comp.lang.c++ --, I have no time for translation and think it is better to leave them than to remove them) which wraps FILE* call into a streambuf. This also is a show case of a use of private inheritance: ensuring that what could be a member is initialized before a base class. In the case of IOStream, the base class could as well receive a NULL pointer and then the member init() used to set the streambuf.

#include <stdio.h>
#include <assert.h>

#include <iostream>
#include <streambuf>

// streambuf minimal encapsulant un FILE*
//    - utilise les tampons de FILE donc n'a pas de tampon interne en
//      sortie et a un tampon interne de taille 1 en entree car l'interface
//      de streambuf ne permet pas de faire moins;
//    - ne permet pas la mise en place d'un tampon
//    - une version plus complete devrait permettre d'acceder aux
//      informations d'erreur plus precises de FILE* et interfacer aussi
//      les autres possibilites de FILE* (entre autres synchroniser les
//      sungetc/sputbackc avec la possibilite correspondante de FILE*)

class FILEbuf: public std::streambuf

  explicit FILEbuf(FILE* cstream);
  // cstream doit etre non NULL.


  std::streambuf* setbuf(char_type* s, std::streamsize n);

  int_type overflow(int_type c);
  int      sync();

  int_type underflow();


  FILE*    cstream_;
  char     inputBuffer_[1];

FILEbuf::FILEbuf(FILE* cstream)
  : cstream_(cstream)
  // le constructeur de streambuf equivaut a
  // setp(NULL, NULL);
  // setg(NULL, NULL, NULL);
  assert(cstream != NULL);

std::streambuf* FILEbuf::setbuf(char_type* s, std::streamsize n)
  // ne fait rien, ce qui est autorise.  Une version plus complete
  // devrait vraissemblablement utiliser setvbuf
  return NULL;

FILEbuf::int_type FILEbuf::overflow(int_type c)
  if (traits_type::eq_int_type(c, traits_type::eof())) {
    // la norme ne le demande pas exactement, mais si on nous passe eof
    // la coutume est de faire la meme chose que sync()
    return (sync() == 0
        ? traits_type::not_eof(c)
        : traits_type::eof());
  } else {
    return ((fputc(c, cstream_) != EOF)
        ? traits_type::not_eof(c)
        : traits_type::eof());

int FILEbuf::sync()
  return (fflush(cstream_) == 0
      ? 0
      : -1);

FILEbuf::int_type FILEbuf::underflow()
  // Assurance contre des implementations pas strictement conformes a la
  // norme qui guaranti que le test est vrai.  Cette guarantie n'existait
  // pas dans les IOStream classiques.
  if (gptr() == NULL || gptr() >= egptr()) {
    int gotted = fgetc(cstream_);
    if (gotted == EOF) {
      return traits_type::eof();
    } else {
      *inputBuffer_ = gotted;
      setg(inputBuffer_, inputBuffer_, inputBuffer_+1);
      return traits_type::to_int_type(*inputBuffer_);
  } else {
    return traits_type::to_int_type(*inputBuffer_);

// ostream minimal facilitant l'utilisation d'un FILEbuf
// herite de maniere privee de FILEbuf, ce qui permet de s'assurer
// qu'il est bien initialise avant std::ostream

class oFILEstream: private FILEbuf, public std::ostream 
  explicit oFILEstream(FILE* cstream);

oFILEstream::oFILEstream(FILE* cstream)
  : FILEbuf(cstream), std::ostream(this)

// istream minimal facilitant l'utilisation d'un FILEbuf
// herite de maniere privee de FILEbuf, ce qui permet de s'assurer
// qu'il est bien initialise avant std::istream

class iFILEstream: private FILEbuf, public std::istream
  explicit iFILEstream(FILE* cstream);

iFILEstream::iFILEstream(FILE* cstream)
  : FILEbuf(cstream), std::istream(this)

// petit programme de test
#include <assert.h>
int main(int argc, char* argv[])
  FILE* ocstream = fopen("result", "w");
  assert (ocstream != NULL);
  oFILEstream ocppstream(ocstream);
  ocppstream << "Du texte";
  fprintf(ocstream, " melange");
  FILE* icstream = fopen("result", "r");
  assert (icstream != NULL);
  iFILEstream icppstream(icstream);
  std::string word1;
  std::string word2;
  icppstream >> word1;
  icppstream >> word2;
  char buf[1024];
  fgets(buf, 1024, icstream);
  std::cout << "Got :" << word1 << ':' << word2 << ':' << buf << '\n';


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