Change filename when using express/multer

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!' } );}

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

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