Uploading file and data from Python to Node.js in POST

Question

How do I send a file to Node.js AND parameter data in POST. I am happy to use any framework. I have attempted it with formidable but I am happy to change.

In my attempt, the file sends, but req.body is empty

Python code to upload:

   with open('fileName.txt', 'rb') as f: 
        payLoad = dict()
        payLoad["data"] = "my_data"
        r = requests.post('http://xx.xx.xx.xx:8080/sendFile',json = payLoad, files={'fileName.txt': f})

Server Side Node.js:

var express = require('express');
var formidable = require('formidable');
var app = express();
var bodyParser = require('body-parser');

app.use( bodyParser.json() ); 
app.use(bodyParser.urlencoded({ extended: false })); 

app.post('/sendFile', function (req, res){
    console.log(req.body )
    // req.body is empty

Goolishka · Accepted Answer · 2017-08-04 12:25:57Z

1

I don't know how to correctly send the file using python, but to receive file with node.js you can use express-fileupload

var fileUpload = require('express-fileupload');
app.use(fileUpload());

app.post('/upload', function(req, res) {
  if (!req.files)
    return res.status(400).send('No files were uploaded.');

  // The name of the input field (i.e. "sampleFile") is used to retrieve the uploaded file 
  let sampleFile = req.files.sampleFile;

  // Use the mv() method to place the file somewhere on your server 
  sampleFile.mv('/somewhere/on/your/server/filename.jpg', function(err) {
    if (err)
      return res.status(500).send(err);

    res.send('File uploaded!');
  });
});

https://www.npmjs.com/package/express-fileupload

answered Aug 4, 2017 at 12:25

Goolishka

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8 Comments

Robben_Ford_Fan_boy Over a year ago

Formidable works for the file upload - its sending the other data that is the problem. Does fileupload let you send data?

Goolishka Over a year ago

files = {'upload_file': open('file.txt','rb')} values = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'} r = requests.post(url, files=files, data=values)

Goolishka Over a year ago

to receive in node. files req.files.upload_file; params req.body.DB

Goolishka Over a year ago

express-fileupload middleware places the file into req.files, the bodyparser middleware places post params into req.body

Robben_Ford_Fan_boy Over a year ago

No, the req.body is empty

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