node.js - respond to each request without having to wait until current stream is finished -

i'm testing streaming creating basic node.js app code streams file response. using code here , here.

but if make request http://127.0.0.1:8000/, open browser , request file, second file not start download until first 1 finished. in example created 1gb file. dd if=/dev/zero of=file.dat bs=1g count=1

but if request 3 more files while first 1 downloading, 3 files start downloading simultaneously once first file has finished.

how can change code respond each request it's made , not have wait current download finish?

var http = require('http'); var fs = require('fs'); var = 1;  http.createserver(function(req, res) {      console.log('starting #' + i++);     // line opens file readable stream     var readstream = fs.createreadstream('file.dat', { buffersize: 64 * 1024 });      // wait until know readable stream valid before piping     readstream.on('open', function () {         console.log('open');         // pipes read stream response object (which goes client)         readstream.pipe(res);     });      // catches errors happen while creating readable stream (usually invalid names)     readstream.on('error', function(err) {         res.end(err);     }); }).listen(8000);  console.log('server running @ http://127.0.0.1:8000/'); 

your code seems fine way is. checked node v0.10.3 making few requests in multiple term sessions:

$ wget http://127.0.0.1:8000 

two requests ran concurrently. same result when using 2 different browsers (i.e. chrome & safari). further, can concurrent downloads in chrome changing request url slightly, in:

http://localhost:8000/foo 

and

http://localhost:8000/bar 

the behavior describe seems manifest when making multiple requests same browser same url.

this may browser limitation - looks second request isn't made until first completed or cancelled.

to answer question, if need multiple client downloads in browser

1. ensure server code implemented such file-to-url mapping 1-to-many (i.e. using wildcard).
2. ensure client code (i.e. javascript in browser), uses different url each request.