The Future of Intent-Based Programming

Traditional Programming

// Create REST API endpoint for user registration
app.post('/api/users', async (req, res) => {
  try {
    // Validate input
    const { email, password, name } = req.body;
    if (!email || !password || !name) {
      return res.status(400).json({ 
        error: 'All fields required' 
      });
    }
    
    // Check if user already exists
    const existingUser = await User.findOne({ email });
    if (existingUser) {
      return res.status(409).json({ 
        error: 'User already exists' 
      });
    }
    
    // Hash password
    const salt = await bcrypt.genSalt(10);
    const hashedPassword = await bcrypt.hash(password, salt);
    
    // Create new user
    const user = new User({
      email,
      password: hashedPassword,
      name
    });
    
    // Save to database
    await user.save();
    
    // Generate JWT token
    const token = jwt.sign(
      { id: user._id }, 
      process.env.JWT_SECRET,
      { expiresIn: '1h' }
    );
    
    // Return success with token
    res.status(201).json({
      message: 'User created successfully',
      token
    });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});