How to Fix Error: Request Entity Too Large

const express = require('express');
const bodyParser = require('body-parser');

const app = express();

// Increase the request size limit (adjust the limit based on your needs)
app.use(bodyParser.json({ limit: '50mb' }));
app.use(bodyParser.urlencoded({ limit: '50mb', extended: true }));

// Your other Express middleware and routes...

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

const express = require('express');
const bodyParser = require('body-parser');
const multer = require('multer');

const app = express();

// Increase the request size limit for body-parser
app.use(bodyParser.json({ limit: '50mb' }));
app.use(bodyParser.urlencoded({ limit: '50mb', extended: true }));

// Increase the request size limit for multer
const upload = multer({ limits: { fileSize: 50 * 1024 * 1024 } }); // 50MB limit
app.post('/upload', upload.single('file'), (req, res) => {
  // Handle the uploaded file
  res.status(200).json({ message: 'File uploaded successfully' });
});

// Your other Express middleware and routes...

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

const http = require('http');

const server = http.createServer((req, res) => {
  let data = '';

  req.on('data', (chunk) => {
    // Accumulate the request data
    data += chunk;

    // Check if the data size exceeds the limit
    if (data.length > 50 * 1024 * 1024) {
      res.writeHead(413, 'Request Entity Too Large', { 'Content-Type': 'text/plain' });
      res.end('Request entity too large');
      req.connection.destroy(); // Terminate the request
    }
  });

  req.on('end', () => {
    // Process the accumulated data
    // ...

    // Send a response
    res.writeHead(200, { 'Content-Type': 'text/plain' });
    res.end('OK');
  });
});

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