Add Secret Token

Open server.js  file and Insert your secret token that you have generated

app.post('/signup', async (req, res) => {
  try {
    const { email, password } = req.body;

    //validate email using ApyHub API
    const response = await axios.post('https://api.apyhub.com/validate/email/dns', { email }, {
      headers: {
        'apy-token': '***************ADD-YOUR-APY-TOKEN-HERE*****************', // 
        'Content-Type': 'application/json'
      }
    });
   
    if (!response.data.data) {
      return res.status(400).json({ message: 'Invalid email address' });
    }

    // Check if user already exists
    const user = users.find(u => u.email === email);
    if (user) {
      return res.status(409).json({ message: 'User already exists' });
    }

    // Hash password
    const saltRounds = 10;
    const hashedPassword = await bcrypt.hash(password, saltRounds);

    // Save user
    users.push({ email, password: hashedPassword });
    res.status(201).json({ message: 'User created' });

  } catch (err) {
    console.error(err);
    res.status(500).json({ message: 'Internal server error' });
  }
});