NodeJS Express4 File Upload

Use Multer

Multer
git hub

For Express3, NodeJS Express3 File Upload(this is not multer) It is easy to implement by myself for Express3.

Sample

This is a sample of multer file upload with Express4

app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var http = require('http');

//var routes = require('./routes/index');
var multer = require('multer');
var done = false;

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
//app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// multer
app.use(multer({ dest: './uploads/',
 rename: function (fieldname, filename) {
    return filename+Date.now();
  },
  onFileUploadStart: function (file) {
    console.log(file.originalname + ' is starting ...')
  },
  onFileUploadComplete: function (file) {
    console.log(file.fieldname + ' uploaded to  ' + file.path)
    done=true;
  }
}));

//app.use('/', routes);   Disable default routing
// routes
var router = express.Router();

router.use(function(req, res, next) {
    // log each request to the console
    console.log(req.method, req.url);
    // continue doing what we were doing and go to the route
    next(); 
});

router.get('/', function(req, res) {
  res.render('index', { title: 'Express' });
});

router.post('/upload', function(req, res){
  console.log(req.files);
  res.end("File uploaded");
});
app.use('/', router);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});

module.exports = app;

app.set('port', 3000);
http.createServer(app).listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
});

index.jade

extends layout

block content
  h1= title
  p File Upload
  form(method="post", enctype="multipart/form-data", action="/upload")
    input(type="file", name="fileupload")
    input(type="submit")