SvelteKit RSVP form

<!-- src/routes/contact/+page.svelte -->
<script>
  let status = "idle";
  async function submit(e) {
    e.preventDefault();
    const res = await fetch("https://formloom.vercel.app/api/submit/YOUR_ACCESS_KEY", {
      method: "POST",
      headers: { "Content-Type": "application/json", Accept: "application/json" },
      body: JSON.stringify(Object.fromEntries(new FormData(e.target))),
    });
    status = (await res.json()).success ? "ok" : "error";
  }
</script>

{#if status === "ok"}
  <p>Thanks — we got your message.</p>
{:else}
  <form on:submit={submit}>
    <label>
      Name
      <input type="text" name="name" required />
    </label>
    <label>
      Email
      <input type="email" name="email" required />
    </label>
    <label>
      Will you attend?
      <select name="attending" required>
        <option value="Yes">Yes</option>
        <option value="No">No</option>
        <option value="Maybe">Maybe</option>
      </select>
    </label>
    <label>
      Number of guests
      <input type="number" name="guests" />
    </label>
    <label>
      Dietary requirements
      <input type="text" name="dietary" />
    </label>
    <!-- honeypot: bots fill this, humans don't see it -->
    <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off" />
    <button type="submit">Send</button>
  </form>
{/if}

<form action="https://formloom.vercel.app/api/submit/YOUR_ACCESS_KEY" method="POST">
  <label>
    Name
    <input type="text" name="name" required />
  </label>
  <label>
    Email
    <input type="email" name="email" required />
  </label>
  <label>
    Will you attend?
    <select name="attending" required>
      <option value="Yes">Yes</option>
      <option value="No">No</option>
      <option value="Maybe">Maybe</option>
    </select>
  </label>
  <label>
    Number of guests
    <input type="number" name="guests" />
  </label>
  <label>
    Dietary requirements
    <input type="text" name="dietary" />
  </label>
  <!-- honeypot: bots fill this, humans don't see it -->
  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off" />
  <button type="submit">Send</button>
</form>

// npm i @formloom/client
import { createForm } from "@formloom/client";

type Contact = {
  name: string;
  email: string;
  attending: string;
  guests?: string;
  dietary?: string;
};

const form = createForm<Contact>("YOUR_ACCESS_KEY");

// End-to-end typed: TS errors if you send the wrong shape.
const { success, message } = await form.submit({
  name: form.name.value,
  email: form.email.value,
  attending: form.attending.value,
  guests: form.guests.value,
  dietary: form.dietary.value,
});