Change filename when using express/multer

Question

I\'m having trouble uploading a pdf, when I upload it (I\'m using ng-file-upload) the file json that reachs express.js is:

{ fieldname: \'file\',
           


        

Answer 1

var storage = multer.diskStorage({
  destination: function (req, file, cb) {
    cb(null, './uploads/')
  },
  filename: function (req, file, cb) {

      cb(null,  file.originalname );

  }
});
var upload = multer({ storage: storage });

Configure like this in your express

Answer 2

In Angular you need to move new_file_name to be above file in data as follows:

    Upload
        .upload( {
            url: '/upload',
            data: {
                new_file_name: vm.new_name, //this is the filename I want
                file: vm.pdf
            }
        } )

Basically browser needs to send that data before the file ... Better explanation can be found here: https://github.com/expressjs/multer/issues/134

Answer 3

var express = require( 'express' ),
    router  = express.Router(),
    util    = require( 'util' ),
    multer  = require( 'multer' );

var storage = multer.diskStorage(
    {
        destination: './uploads/',
        filename: function ( req, file, cb ) {
            //req.body is empty...
            //How could I get the new_file_name property sent from client here?
            cb( null, file.originalname+ '-' + Date.now()+".pdf");
        }
    }
);

var upload = multer( { storage: storage } );

router.route( '/upload' )
    .post( upload.single( 'file' ), post );

function post( request, response ) {

    response.json( { message: 'Files Uploaded!' } );

}