node.js using fileUploadMiddleware for streaming files to CDN

server.js

import multer from 'multer';
import cloudinary from 'cloudinary';
import fileUploadMiddleware from './fileUploadMiddleware';

/* your servrer init and express code here */

cloudinary.config({
  cloud_name: 'xxx',
  api_key: 'xxxx',
  api_secret: 'xxxxx',
});

/**
  * Multer config for file upload
*/

const storage = multer.memoryStorage();
const upload = multer({ storage });
app.post('/files', upload.single('file'), fileUploadMiddleware);

/* the rest of your routes app.get('*', () => {}) */
/* the rest of your server code */