How to set different destinations in nodejs using multer?

Question

I\'m trying to upload any file using Multer package. It\'s working fine when I use following code in my server.js file.

var express         


        

Answer 1

I tried the solutions shown here but nothing helped me.

ChangeDest attr is not available anymore (As Sridhar proposes in his answer)

I want to share my solution (I am using express 4.13 and multer 1.2):

Imports:

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

Storage variable (see documentation here)

var storage = multer.diskStorage({
    destination: function (req, file, cb) {
        var dest = 'uploads/' + req.params.type;
        var stat = null;
        try {
            stat = fs.statSync(dest);
        } catch (err) {
            fs.mkdirSync(dest);
        }
        if (stat && !stat.isDirectory()) {
            throw new Error('Directory cannot be created because an inode of a different type exists at "' + dest + '"');
        }       
        cb(null, dest);
    }
});

Initializing Multer:

var upload = multer(
    { 
        dest: 'uploads/',
        storage: storage
    }
);

Using it!

router.use("/api/:type", upload.single("obj"));
router.post('/api/:type', controllers.upload_file);