File upload with express.js

Uploading files with express.js is insanely simple!

FYI, there's something special called req.files when you upload multipart forms. In this case I upload the file with a form field with the name of "file".

	// middleware
	app.use(express.bodyParser({ keepExtensions: true, uploadDir: __dirname + "/public/uploads" }))
	// later
	app.get('/photos', uploadFile, addPhoto)
	// file is automatically saved to /public/uploads, let's just set
	function uploadFile(req, res, next) {
	if (req.files) {
	req.body.url = "http://myawesomesite.com/" + req.files.file.path.split("/").slice(-2).join("/")
	req.body.path = req.files.file.path.split("/").slice(-2).join("/")
	}
	next()
	}
	// file upload is optional, it could have come before
	function addPhoto(req, res) {
	var eventId = req.param("eventId")
	var e = req.body
	var userId = e.userId ? new ObjectId(e.userId) : undefined
	var photo = new Photo({
	userId : userId
	, eventId : new ObjectId(e.eventId)
	, latitude : e.latitude
	, longitude : e.longitude
	, path : e.path
	, url : e.url
	, type : e.type
	, title : e.title
	, description : e.description
	})
	photo.save(function(err) {
	if (err) return res.send(err.message, 500)
	res.json("OK")
	})
	}

view raw uploadapp.js hosted with ❤ by GitHub

I found this stuff out here:

http://www.senchalabs.org/connect/middleware-bodyParser.html

https://groups.google.com/forum/#!topic/express-js/vDmtdWMx5tY