Is there any way to track the progress? about needle

[fedegratti]

Hey @tomas , I would love to have this feature. Yesterday I was all day changing my app from request to needle and I could do everything but this. I really need to know at least the bytes transferred while I'm uploading a file. I tried to do something like this (when I was using request it worked), but req.request.connection._bytesDispatched always returns the same value:

  var stats = jetpack.inspect(file.path)
  var needleFile = {
    buffer: jetpack.read(file.path, 'buffer'),
    content_type: file.type,
    filename: file.name
  }

  var data = { 
    parent_id: parentId, 
    file: needleFile 
  }

  var options = {
    follow: 3,
    multipart: true
  }

  var req = needle.post(fileUploadUrl, data, options,
  function(err, resp, body) {
      clearTimeout(pooler)

      if (resp.statusCode == 201) {
        console.log(body)
      } else {
        console.log(resp.statusCode, resp.statusMessage)
      }
  })

  var pooler = setInterval(() => {
    pCb({
        percentage: Math.floor(req.request.connection._bytesDispatched * 100 / stats['size']), 
        eta: ''
    })
  }, 500)

Also I tried using req.on('data', ... but it didn't work. Is there any way to get the progress state when uploading?

Thank you!

[tomas]

You mean from the command line or through your app?

[dlion]

My app is a shell app, i want to show a progressbar in my shell like this

############################################################## 100.0%

but how ?
Ho can I check how much bytes I've sent to my server ?

[tomas]

Currently you can't. I suppose you could fork the repo and trigger an event whenever a chunk of data is sent, so you can calculate the percentage done vs remaining.

[dlion]

Damn, I saw that: https://github.com/IndigoUnited/node-request-progress but this is for request modules.
Dammit.

[tomas]

Looks like that library is for tracking download progress, not upload progress. For downloads I think that same library might be used with Needle as it is. Just replace the request call with needle and it should work.

[dlion]

You right but I want to show upload progressbar, damn.
So, Can I detect chuck of data sent using needle.post?
It's I think the right way to me.

[tomas]

Shoot I totally forgot about this, sorry mate.

If you're using a recent version of node, you should be able to set a listener on the returned object (which is the response stream). Something like:

var req = needle.post('http://foo.com/bar', { data: 'bla' }, function(err, resp) {
  console.log('Request finished');
});

req.on('data', function(chunk) {
  console.log('Got ' + chunk.length + ' bytes.');
});