Hi everyone! I'm currently working on a Node.js project using Express and I'm looking for guidance on handling file uploads. I need to implement a feature where users can upload files (images, documents, etc.) to my server. Could someone please provide insights, best practices, or a code example on how to handle file uploads using Express in Node.js? Any help would be greatly appreciated. Thank you!

// app.js (or your main server file)

const express = require('express');
const fileUpload = require('express-fileupload');
const app = express();

// Enable file upload middleware
app.use(fileUpload());

// File upload endpoint
app.post('/upload', (req, res) => {
  if (!req.files || Object.keys(req.files).length === 0) {
    return res.status(400).send('No files were uploaded.');
  }

  // The name of the input field (e.g. "file") is used to retrieve the uploaded file
  const uploadedFile = req.files.file;

  // Move the file to a specified location on the server
  uploadedFile.mv(`./uploads/${uploadedFile.name}`, (err) => {
    if (err) {
      return res.status(500).send(err);
    }

    res.send('File uploaded!');
  });
});

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