Cách xây dựng biểu mẫu liên hệ hiện đại mà không cần thiết lập máy chủ email hoặc SMTP

<!-- Vanilla HTML Form with Lugatu Form Endpoint -->
<form id="inquiry-form">
  <label for="name">Your Name</label>
  <input type="text" id="name" name="name" required />

  <label for="email">Work Email</label>
  <input type="email" id="email" name="email" required />

  <label for="message">Project Details</label>
  <textarea id="message" name="message" rows="4" required></textarea>

  <!-- Built-in Honeypot Bot Trap -->
  <input type="text" name="_gotcha" style="display:none !important" tabindex="-1" autocomplete="off" />

  <button type="submit">Send Inquiry</button>
</form>

<script>
document.getElementById('inquiry-form').addEventListener('submit', async (e) => {
  e.preventDefault();
  const form = e.target;
  const data = new FormData(form);

  const payload = {
    fields: {
      name: data.get('name'),
      email: data.get('email'),
      message: data.get('message')
    },
    honeypot: data.get('_gotcha') || ''
  };

  const res = await fetch('https://www.lugatu.com/api/v1/public/forms/YOUR_PUBLIC_FORM_ID/submissions', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', 'Accept': 'application/json' },
    body: JSON.stringify(payload)
  });

  if (res.ok) {
    alert('Inquiry sent successfully!');
    form.reset();
  }
});
</script>