সিঙ্গেল ইনপুট দিয়ে সিঙ্গেল ও মাল্টিপল ফাইল আপলোড

const express = require('express');
const app = express();

const port = 3000;
app.listen(port, () => {
  console.log('Server listening on port 3000');
});

npm install multer

const multer = require('multer');
const upload = multer({
  dest: './uploads/'
});

  // এখানে আমাদের ফাইল  ইনপুট ফিল্ডের নাম image
  app.post('/uploads',upload.single('image'), (req, res) => {
       // File uploaded successfully
       res.send('File uploaded successfully');
  });

  // আমরা একসাথে তিনটি ফাইল আপলোড করার অনুমতি দিলাম 
  app.post('/uploads',upload.array('image',3), (req, res) => {
       // File uploaded successfully
       res.send('File uploaded successfully');
  });

const generateFilename = (originalFilename) => {
  // Remove spaces from the original filename.
  let newFilename = originalFilename.replace(/\s+/g, '_');

  // Add the current date to the new filename.
  const currentDate = new Date();
  const dateString = currentDate.toISOString().split('T')[0];
  newFilename = dateString+'_'+newFilename;

  return newFilename;
};

  const storage = multer.diskStorage({
    destination: './uploads',
    filename: (req, file, cb) => {
      cb(null, generateFilename(file.originalname));
    }
  });
  

// আগে ছিল  

const upload = multer({
  dest: './uploads/'
});

// এরকম হবে  
const upload = multer({
  storage: storage,
  })