server.js

// server.js



// Rest of your code...


const express = require('express');
const mongoose = require('mongoose');
const bcrypt = require('bcrypt');
const cors = require('cors');
const bodyParser = require("body-parser");



// Rest of your code...


const app = express();
const port = 3000;


app.use(express.static("public"));
app.set('view engine', 'html');

app.engine('html', require('ejs').renderFile);
app.use(bodyParser.urlencoded({
  extended: true
}));


// Middleware
app.use(cors());
app.use(express.json());

// Connect to MongoDB
mongoose.connect('mongodb://localhost/login-app', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    console.log('Connected to MongoDB');
  })
  .catch((err) => {
    console.error('Error connecting to MongoDB:', err);
  });

// User model
const User = mongoose.model('User', new mongoose.Schema({
  email: { type: String, required: true, unique: true },
  password: { type: String, required: true },
}));
 
app.get("/", function(req, res){
  res.render("index.html");
})
// Login endpoint
app.post('/login', async (req, res) => {
  const { email, password } = req.body;

  try {
    // Find the user by email
    const user = await User.findOne({ email });

    if (!user) {
      return res.status(401).json({ message: 'Invalid credentials' });
    }

    // Compare the provided password with the stored password hash
    const passwordMatch = await bcrypt.compare(password, user.password);

    if (!passwordMatch) {
      return res.status(401).json({ message: 'Invalid credentials' });
    }

    // Authentication successful
    return res.status(200).json({ message: 'Login successful' });
  } catch (error) {
    console.error('Error during login:', error);
    res.status(500).json({ message: 'Server error' });
  }
});

// Start the server
app.listen(port, () => {
  console.log(`Server running on port ${port}`);
});