How do I send a file from postman to node.js with multer

Question

Windows
Express 4.12.4
Multer 1.0.1
Node v0.10.22

I'm trying to send a file to my node.js server using postman.

I'm attempting to follow the readme here

Here's what I'm sending with postman:

POST /ingest HTTP/1.1
Host: localhost:3000
Cache-Control: no-cache
Postman-Token: 69dd2497-2002-56ed-30a4-d662f77dc0b0
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

Here's what it looks like:

Here's what it's hitting on node.js

var Ingest      = require('../controllers/ingest.js');
var multer      = require('multer');
var upload      = multer({ dest: 'uploads/',fileFilter:function(req,file,cb){
        console.log('file is',file)
        cb(null,true);
    }
});

module.exports = function (app) {
    app.post('/ingest', upload.single('test'), function(req, res, next) {
        console.log(req.body);
        console.log(req.file);
        Ingest.ingestData()
        .then(function (response){
            return res.status(200).json(response);
        });
    });
}

When I hit this route with postman I get {} for req.body and undefined for req.file.

What am I doing wrong?

Here's where I initialize the app that gets passed in to the route file:

var express = require('express');
var app = express();
var http = require('http');
var cfg = require('./config')();
var passport = require('passport');
var cors = require('cors');

var bodyParser = require('body-parser');

app.set('port', process.env.PORT || cfg.port);
var corsOptions = {
    origin: "*",
    allowedHeaders: ['Content-Type', 'Authorization', 'Accept', 'x-reset-token', 'x-invite-token', 'x-api-key', 'x-www-form-urlencoded'],
    credentials: true
};
app.use(cors(corsOptions));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(passport.initialize());
http.createServer(app).listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
});

Maybe something in there is doing it?

Edit:

I've even tried

var Ingest      = require('../controllers/ingest.js');
var multer      = require('multer');
var upload      = multer({ dest: 'uploads/',fileFilter:function(req,file,cb){
        console.log('file is',file)
        cb(null,true);
    }
}).single('csv');

module.exports = function (app) {

    app.post('/ingest', function(req,res){
        upload(req, res, function(err) {
            if(err){
                console.log(err);
            }
            console.log(req.body);
            console.log(req.file);
            Ingest.ingestData()
            .then(function (response){
                return res.status(200).json(response);
            });
        });
    });

}

And that didn't help. It doesn't log anything for err

@hassansin oh, is that what that was for? Post it as an answer and I can accept it — , Jul 30 '15 at 23:28

score 17 · Answer 1 · answered Mar 23 '18 at 16:47

17

Just remove header Content-Type:application/x-www-form-urlencoded from the postman.

answered Mar 23 '18 at 16:47

taman neupane

938
9
18

Why am i getting down voted. please look clearly that Content - Type is unchecked. – taman neupane Mar 25 '18 at 05:41
1

Well your answer worked for me so I am up-voting you mate. – ankittiwaari Jul 14 '18 at 16:48
1

Worked for me. Thanks – Tushar Nikam Sep 11 '18 at 12:03
thanks lol I was looking for the same and this was the only thing that prevented it from working with multer(nodejs) – John Nov 01 '18 at 01:38
Thank you ! This helped me ! :) – Vaibhav Arora Dec 02 '18 at 22:10

score 14 · Accepted Answer · answered Jul 30 '15 at 23:49

14

In Postman screenshot, the file field name is missing. The key should be csv since Multer accepts single file with that name.

answered Jul 30 '15 at 23:49

hassansin

16,918
3
43
49

score 11 · Answer 3 · answered Oct 19 '16 at 19:45

This would help others like me who are searching for a similar answer.

I used a curl request instead of Postman.

curl -v -F csv=@file.csv http://localhost/url

There seems to be an issue with Postman.

https://github.com/expressjs/multer/issues/317

I also have this issue when I use Postman to send file using form-data. The attribute req.file or req.files is always undefined. If anyone has used Postman and was able to retrieve the file using req.file or req.files, please comment.

thanks, i have the same problem with postman, spent lot of time on it, and didnt success — ofir_aghai, Apr 02 '17 at 22:28

score 0 · Answer 4 · answered Mar 28 '21 at 19:28

0

Updating from Postman version 5.5.3 to version 8.0.7. solved the issue for me. Maybe related to this problem fixed in version 7.

answered Mar 28 '21 at 19:28

Dashiell Rose Bark-Huss

2,173
3
28
48

score -1 · Answer 5 · answered Aug 10 '21 at 23:56

-1

Multer looks for the file named 'single'. So if you add the key as 'single' in postman form-data it should work

answered Aug 10 '21 at 23:56

sampath

49
2
4

How do I send a file from postman to node.js with multer

Edit:

5 Answers5