myjian/file-upload-example.js

## file-upload-example.js
var express = require('express');
var multer = require('multer');
var upload = multer({ dest: 'uploads/'});

var PORT = 3000;
var app = express();

var htmlHeader = '<!DOCTYPE html>'
+ '<html lang="en">'
+ '<head>'
+ '<meta charset="utf-8">'
+ '<title>File Upload Example</title>'
+ '</head>'
+ '<body>';

var htmlFooter = '</body></html>';
var tmpHtml = '';

// Credit: Timothy Perez
// http://stackoverflow.com/questions/3883342/add-commas-to-a-number-in-jquery
function commaSeparateNumber(val){
	while (/(\d+)(\d{3})/.test(val.toString())){
		val = val.toString().replace(/(\d+)(\d{3})/, '$1'+','+'$2');
	}
	return val;
}

app.listen(PORT, function(){
	console.log('Listening on port ' + PORT);
});

app.get('/', function(req, res){
	var htmlToSend = htmlHeader;
	htmlToSend += tmpHtml;
	tmpHtml = '';
	htmlToSend += '<form method="post" action="/" enctype="multipart/form-data">';
	htmlToSend += '<span style="border: 1px solid black">';
	htmlToSend += '<input type="file" name="miku">';
	htmlToSend += '</span><br>';
	htmlToSend += '<button type="submit">Upload</button>';
	htmlToSend += '</form>';
	htmlToSend += htmlFooter;
	res.type('html');
	res.send(htmlToSend);
});

app.post('/', upload.single('miku'), function(req, res) {
	if (!req.file) {
		tmpHtml = '<div style="color: red">file not received</div>';
	}
	else {
		console.log(req.file);
		tmpHtml = '<div style="color: green">file received</div>';
		tmpHtml += 'Name: ' + req.file.originalname + '<br>';
		tmpHtml += 'Size: ' + commaSeparateNumber(req.file.size) + ' Bytes<br>';
	}
	res.redirect('/');
});
	var express = require('express');
	var multer = require('multer');
	var upload = multer({ dest: 'uploads/'});

	var PORT = 3000;
	var app = express();

	var htmlHeader = '<!DOCTYPE html>'
	+ '<html lang="en">'
	+ '<head>'
	+ '<meta charset="utf-8">'
	+ '<title>File Upload Example</title>'
	+ '</head>'
	+ '<body>';

	var htmlFooter = '</body></html>';
	var tmpHtml = '';

	// Credit: Timothy Perez
	// http://stackoverflow.com/questions/3883342/add-commas-to-a-number-in-jquery
	function commaSeparateNumber(val){
	while (/(\d+)(\d{3})/.test(val.toString())){
	val = val.toString().replace(/(\d+)(\d{3})/, '$1'+','+'$2');
	}
	return val;
	}

	app.listen(PORT, function(){
	console.log('Listening on port ' + PORT);
	});

	app.get('/', function(req, res){
	var htmlToSend = htmlHeader;
	htmlToSend += tmpHtml;
	tmpHtml = '';
	htmlToSend += '<form method="post" action="/" enctype="multipart/form-data">';
	htmlToSend += '<span style="border: 1px solid black">';
	htmlToSend += '<input type="file" name="miku">';
	htmlToSend += '</span><br>';
	htmlToSend += '<button type="submit">Upload</button>';
	htmlToSend += '</form>';
	htmlToSend += htmlFooter;
	res.type('html');
	res.send(htmlToSend);
	});

	app.post('/', upload.single('miku'), function(req, res) {
	if (!req.file) {
	tmpHtml = '<div style="color: red">file not received</div>';
	}
	else {
	console.log(req.file);
	tmpHtml = '<div style="color: green">file received</div>';
	tmpHtml += 'Name: ' + req.file.originalname + '<br>';
	tmpHtml += 'Size: ' + commaSeparateNumber(req.file.size) + ' Bytes<br>';
	}
	res.redirect('/');
	});