Busboy often throws Unhandled 'error' event Unexpected end of multipart data

Hi everyone

I am using node v6.10.3 and Busboy 0.2.14. I use busboy to stream jpg image to a node server. But the issue is sometimes it works and some times it fails with the folowing error and crashes my server.

events.js:183 066466+00:00 app[web.1]: throw er; // Unhandled 'error' event 2018-06-19T00:45:07.066468+00:00 app[web.1]: ^ 2018-06-19T00:45:07.066470+00:00 app[web.1]: 066472+00:00 app[web.1]: Error: Unexpected end of multipart data 2018-06-19T00:45:07.066474+00:00 app[web.1]: at /app/node_modules/busboy/node_modules/dicer/lib/Dicer.js:62:28

Here is my code to handle the file

 req.busboy.on('file', function (fieldname, file, filename) {
   console.log("Uploading: " + (filename)); 
   fstream = fs.createWriteStream(__dirname + '/public/img/'+ filename);

   file.on('data', function(chunk) {
     fstream.write(chunk);
   });

   file.on('end', function() {
     fstream.end();
     console.log('File [' + fieldname + '] Finished sucessfully');
    });
  file.on('error',function(err){
    console.log('fstream error' + err);
    file.unpipe();
  });
});

I have tried to follow similar issues online, but no success. Can somebody please help me what could be the issue here? Thank you in advance.

[0xCAFEADD1C7]

@trunderman If you still need the answer, you must add an error handler to the file objected got from busboy. You’ll have something like :

busboy.on('file', function(fieldname, file, filename, encoding, mimetype) {
  // with this handler, it won't throw at a higher level
  file.on('error', function(err) {
    // do whatever you want with your error
  })
});

Note that the error event will also be emitted on the busboy object (so busboy.on('error', () => { ... }) will also get an event)

[trunderman]

@david1921 how did you go about handling the error correctly?