Multer middleware not working

[Svenskunganka]

I have an issue trying to implement a binary upload route using multer as a middleware.

Here's my current code:

Meteor.startup(function() {
  var multer = Meteor.npmRequire('multer');
  var upload = multer({ storage: multer.memoryStorage() });
  Picker
    .filter(function(req, res) {
      return req.method === 'POST';
    })
    .route('/upload', function(params, req, res, next) {
      console.log(req.file);
      res.end();
    })
    .middleware(upload.single('excel'));
});

And the output of that console.log(req.file) is undefined. I've also logged the whole req object and cannot file any file property in it.

[karlpokus]

Has this been fixed? I'm gonna need Multer as well for a task.

[Svenskunganka]

Hey @karlpokus, I decided to add my own implementation using the binary EJSON datatype and transfer over the DDP connection instead. Ended up with a faster transfer as the initial connection was already established since the beginning.

[karlpokus]

@Svenskunganka Sounds cool. I'm gonna need to parse an e-mail with .csv attached so DDP is not an option for me.

[karlpokus]

Hi @Svenskunganka I actually solved this I think. This works.

var multer = Meteor.npmRequire('multer'),
      upload = multer();

Picker.middleware(upload.any());

Picker.route('/incoming', function(params, req, res, next) {
    if (req.files && req.files.length > 0) {
      CSVParse(req.files[0].buffer, function(err, data){
        if (!err) {
          console.log(data);
        }
      });
    }
});

[Taakn]

@karlpokus thanks for coming back and writing down your solution, you save the day! upload.single()wasn't working but upload.any() is!

[karlpokus]

@Taakn Happy to help.

[ghost]

I'm unable to get multer working with Picker either. I've tried multiple variations. This was working at one point. Prior to Meteor 1.3 maybe? Is this still a know and open issue?

[karlpokus]

@ccuilla It's open alright. Can't remember what meteor version I was running. Sorry.

[anasalaqeel]

I had the same problem and there is no solution on the internet, so I tried to figure it out and finally I realised that the problem is from express-fileupload module if I use the multer before the line where I set the fileUpload middleware which is app.use(fileUpload()); it works fine and the multer middleware will be invoked without any problem, so I ended up to remove fileUpload module and everything works fine