CODEWITHSUNDEEP
node.jsfile-uploadformidable
orezvani
orezvani

Reputation: 3775

Change the name of uploaded file in node.js

I am using node.js to upload a file. But it uploads the file in the /tmp folder with a random like name (such as: 132d439bb31ee13daaf6ce02e223738f). I want the node to upload the file in a given directory with a given name. How can I make it? here is my code:

var http = require("http"),
    url = require("url"),
    sys = require("sys"),
    events = require("events"),
    fs = require("fs"),
    formidable = require('formidable'),
    util = require('util');

var server = http.createServer(function(req, res) {
    switch (url.parse(req.url).pathname) {
        case '/':
            display_form(req, res);
            break;
        case '/upload':
            upload_file(req,res);
            break;
        default:
            show_404(req, res);
            break;
    }
});

server.listen(8124);

function display_form(req, res) {
    //displays an html form with an upload and a submit button
}

function upload_file(req, res) {
    if (req.url == '/upload' && req.method.toLowerCase() == 'post') {

      // Instantiate a new formidable form for processing.

      var form = new formidable.IncomingForm();

      // form.parse analyzes the incoming stream data, picking apart the different fields and files for you.

      form.parse(req, function(err, fields, files) {
        if (err) {

          // Check for and handle any errors here.

          console.error(err.message);
          return;
        }
            form.on('fileBegin', function(name, files) {
                files.name="./guake.up";
            });
        res.writeHead(200, {'content-type': 'text/plain'});
        res.write('received upload:\n\n');

            console.log(files.name);

        // This last line responds to the form submission with a list of the parsed data and files.

        res.end(util.inspect({fields: fields, files: files}));
      });
      return;
    }
}

function show_404(req, res) {
    //shows a 404 page
}

Upvotes: 0

Views: 3081

Answers (1)

orezvani
orezvani

Reputation: 3775

I found the answer and I only need to add the following code before my form.parse method:

form.on('error', function(err) {
             throw err;
             })

       /* this is where the renaming happens */
     .on ('fileBegin', function(name, file){
             //rename the incoming file to the file's name
             file.path = form.uploadDir + file.name;
      });

and the problem is solved

Upvotes: 1

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