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Cannot read property 'isLoggedIn' of undefined

If you are getting an error as follows:
Cannot read property 'isLoggedIn' of undefined
And you are using multer in the following fashion:
  1. const fileStorage = multer.diskStorage({
  2. destination: (req, file, cb) => {
  3. cb(null, 'images');
  4. },
  5. filename: (req, file, cb) => {
  6. cb(null, new Date().toISOString() + '-' + file.originalname);
  7. }
  8. });
Then you must first understand what is the cause of the problem.
new Date().toISOString() is the cause of the problem.
Solution:
Either use new Date().getMilliseconds().toString()
Or use uuid for naming the stored file.

UUIDV4 Get Started

Installation


$ npm install uuidv4

Quick start

First you need to integrate uuidv4 into your project by using the require function:

const uuid = require('uuidv4');
Then you can create UUIDs. To do so simply call the uuid function:

console.log(uuid());

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