Renaming an uploaded file using Multer doesn't work (Express.js)

Question

I\'m trying to upload a file from a HTML form using Express.js and Multer. I\'ve managed to save the file to the desired location (a folder named uploads).

Howe

Answer 1

The usage for Multer has changed.

Currently Multer constructor accepts only three options:

1. dist/storage
2. fileFilter
3. limits

now rename, onFileUploadStart, onFileUploadComplete would not work.

however renaming can be done using DiskStorage

var storage = multer.diskStorage({
    destination: function (req, file, cb) {
        cb(null, '/tmp/my-uploads')
    },
    filename: function (req, file, cb) {
        cb(null, file.fieldname + '-' + Date.now())
  }
})

var upload = multer({ storage: storage })

have a look at these links:

• https://github.com/expressjs/multer
• multer callbacks not working ?