This is my server side code.

const express = require('express');
const cors = require('cors');
const multer = require('multer');
const fs = require('fs');
const {Storage} = require('megajs');
const archiver = require('archiver');
require('dotenv').config();

const app = express();
app.use(cors());

// ENVs

const port = process.env.PORT || 5000;
const megaUser = process.env.MEGA_USER;
const megaPassword = process.env.MEGA_PASSWORD;
const megaFolderName = process.env.MEGA_FOLDERNAME;

// App Interface

app.get('/', (req, res) => {
  res.send('Hello World!');
});

app.get('/:key', (req, res) => {
  res.send(`Hello ${req.params.key}`);
});

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`);
});

// Mega storage Setup

let megaStorage;

const storage = new Storage({
  email: megaUser,
  password: megaPassword,
  userAgent: 'myApp/1.0'
});

storage.on('ready', async () => {
  console.log("MEGA connected");
  megaStorage = storage.root.children.find(folder => folder.name === megaFolderName); 
  if (!megaStorage) {
    console.error("Upload folder not found");
  } 
  else {
    console.log("Upload folder found:", megaStorage.name);
    megaStorage.children?.map(folders => folders.children?.map(files => console.log(files.name)));
  }
});

storage.on('error', (err) => {
  console.error("MEGA connection error:", err);
});

/* REST Api */

// Upload

const upload = multer({ storage: multer.memoryStorage() });

app.post('/api/upload/:key', upload.array('files'), async (req, res) => {
  try {
    if (!megaStorage) {
      return res.status(500).send('MEGA storage not initialized');
    }

    const key = req.params.key;

    let folder = megaStorage.children.find(folder => folder.name === key);
    if (!folder) {
      folder = await megaStorage.mkdir({ name: key });
    }
    for (const file of req.files) {
      const result = await folder.upload({ 
        name: file.originalname,
        size: file.size,
        data: file.buffer 
      }).complete;
      console.log(result);
    }
    res.status(200).send('Files uploaded successfully');
  } 
  catch (err) {
    console.error('Error uploading files:', err);
    res.status(500).send('Error uploading files');
  }
});

This is my endpoint for uploading the files. This endpoint created a new folder in the name of key received and upload the received files to the folder using the megajs.

const upload = multer({ storage: multer.memoryStorage() });

app.post('/api/upload/:key', upload.array('files'), async (req, res) => {
  try {
    if (!megaStorage) {
      return res.status(500).send('MEGA storage not initialized');
    }

    const key = req.params.key;

    let folder = megaStorage.children.find(folder => folder.name === key);
    if (!folder) {
      folder = await megaStorage.mkdir({ name: key });
    }
    for (const file of req.files) {
      const result = await folder.upload({ 
        name: file.originalname,
        size: file.size,
        data: file.buffer 
      }).complete;
      console.log(result);
    }
    res.status(200).send('Files uploaded successfully');
  } 
  catch (err) {
    console.error('Error uploading files:', err);
    res.status(500).send('Error uploading files');
  }
});

But when I request from the client side the page just loading forever. It’s not showing any errors and a new folder is created successfully in Mega but the received files are not uploaded to it. Can someone point me what is the problem?

for (const file of req.files) {
   const result = await folder.upload({ 
      name: file.originalname,
      size: file.size,
      data: file.buffer 
   }).complete;
   console.log(result);
}

This is the part which uploads the files to mega folder and it’s not working. Can anyone tell me to what to do?