Writing Empty files

[vaskaloidis]

Does anybody know why resumable.js might be writing empty (0kb) files for me - it was previously uploading the full file but now the file generated is 0kb, and I cannot figure out why. It goes through the full upload process, but the file getting written is empty.

[cpnielsen]

Does the network requests contain data and the right number of chunks?

[vaskaloidis]

Its not because its not iterating over the data from the input stream.

InputStream pis = request.getPortletInputStream(); //This must be empty now
long readed = 0;
long content_length = request.getContentLength();
log.info("Content Length: " + content_length); //Always -1
byte[] bytes = new byte[1024 * 100];
while(readed < content_length) {
// Not getting into the loop even
}

This used to work - I am not sure what I changed to cause the input stream to be empty

[cpnielsen]

We do not provide support on any backend/receiving code, only the frontend library, as it can any of a 1000 constellations, code, server setup, etc.

[vaskaloidis]

Its not backend - the request from resumable.js used to contain an input stream with the file chunks, now its not. Resumable.js is not sending data to the backend anymore (it used to).

[cpnielsen]

Can you verify, in a browser or via network sniffer (WireShark, Fiddler, etc.) that the requests contain no data?

[vaskaloidis]

When I write the contents of the request.getPortletInputStream() to console - its empty now. Again, this previously worked

InputStream pis = request.getPortletInputStream(); //This is empty now
br = new BufferedReader(new InputStreamReader(pis));
while ((line = br.readLine()) != null) {
    sb.append(line);
}

This is printing out nothing.

[cpnielsen]

@vaskaloidis Again, I cannot tell why the data is not reaching your backend and I cannot help you debug that part. Did you update to a new version of Resumable.js that caused this change? Otherwise it sounds like it's an issue with your server setup.

[mmrosatab]

@vaskaloidis I had this same problem of empty inputstream when I put testMethod: 'POST', the server side receives the various parameters normally in the request, such as chunck number, chunck size, etc., but the inputstream is always empty for me. Using testMethod: 'GET' the inputstream comes with the data, however smoothing the network tab in the browser I notice that the requests fail a lot, although the file upload is completed correctly. This question has been open for many years, but perhaps this information will be useful to someone. ** EDIT: The errors in the requests using testMethod: 'GET' were because I had only implemented the POST method on the server side. After I implemented the GET method on the server side that return a response status 204 errors did not occur.