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

try this way which i'm using

  var storage = multer.diskStorage({
    destination: function (req, file, cb) {
      cb(null, 'uploads/')
    },
    filename: function (req, file, cb) {
      console.log(file);
      var fileObj = {
        "image/png": ".png",
        "image/jpeg": ".jpeg",
        "image/jpg": ".jpg"
      };
      if (fileObj[file.mimetype] == undefined) {
        cb(new Error("file format not valid"));
      } else {
        cb(null, file.fieldname + '-' + Date.now() + fileObj[file.mimetype])
      }
    }
  })

  var upload = multer({ storage: storage })