upload.js

// to test...
// curl -T path/to/file.tar.gz http://localhost:8000

var http = require('http')
var fs = require('fs')

http.createServer(function(req, rsp){
    
    var file = fs.createWriteStream("mynewfile")
    
    file.on("drain", function(){
        req.resume()
    })
    
    req.on("data", function(chunk) {
        req.pause()
        file.write(chunk, "binary")
    })
    
    req.on("end", function(){
        file.end()
        rsp.writeHead(200)
        rsp.end("it worked!")
    })
    
}).listen(8000)

upload_using_pump.js

// same as above

var http = require('http')
var fs = require('fs')
var util = require('util')

http.createServer(function(req, rsp){
    
    var file = fs.createWriteStream("mynewfile")
    
    util.pump(req, file)
    
    req.on("end", function(){
        file.end()
        rsp.writeHead(200)
        rsp.end("done!")
    })
    
}).listen(8001)