---
title: Web SDK
---

# Web SDK

Web SDK mendukung semua browser modern dengan berbagai metode integrasi.

::: tip Lihat dalam 30 detik
[demo-v1.captcha.la](https://demo-v1.captcha.la) — HTML + PHP murni, lisensi MIT, view-source di setiap halaman.

- [popup.html](https://demo-v1.captcha.la/popup.html) — mode popup
- [float.html](https://demo-v1.captcha.la/float.html) — widget mengambang
- [bind.html](https://demo-v1.captcha.la/bind.html) — ikat ke tombol
- [inline.html](https://demo-v1.captcha.la/inline.html) — sematan inline
- [server-token.html](https://demo-v1.captcha.la/server-token.html) — token terbitan server (anti-replay)
:::

## Mulai cepat

```html
<!-- 1. Load via CDN (or npm install captchala) -->
<script src="https://cdn.captcha-cdn.net/captchala-loader.js"></script>

<button id="login-btn">Sign in</button>

<script>
loadCaptchala(function () {
  Captchala.init({
    appKey: 'YOUR_APP_KEY',
    product: 'bind',
    action: 'login',
    lang: 'auto',
  })
  .onSuccess(res => sendToBackend(res.token))
  .onError(err => console.error(err.message))
  .bindTo('#login-btn');
});
</script>
```

## Instalasi

### CDN

```html
<!-- Recommended: auto-fallback loader, ~6 KB gzip -->
<script src="https://cdn.captcha-cdn.net/captchala-loader.js"></script>
```

### NPM

```bash
npm install captchala
# or framework wrappers
npm install @captcha-la/vue
npm install @captcha-la/react
```

```js
import Captchala from 'captchala';
import 'captchala/dist/captchala.css';
```

## Mode

### Mode Popup

```js
Captchala.init({ appKey: 'YOUR_APP_KEY', product: 'popup', action: 'login' })
  .bindTo('#login-btn')
  .onSuccess(res => sendToBackend(res.token));
```

### Mode Float

```js
Captchala.init({ appKey: 'YOUR_APP_KEY', product: 'float', action: 'browse' })
  .appendTo('#captcha-container')
  .onSuccess(res => sendToBackend(res.token));
```

### Mode Bind

```js
Captchala.init({ appKey: 'YOUR_APP_KEY', product: 'bind', action: 'login' })
  .bindTo('#submit-button')
  .onSuccess(res => submitForm(res.token));   // fires only after challenge passes
```

### Mode Embed

```js
Captchala.init({ appKey: 'YOUR_APP_KEY', product: 'embed', action: 'register' })
  .appendTo('#captcha-container')
  .onSuccess(res => sendToBackend(res.token));
```

## Opsi umum

| Parameter | Tipe | Default | Deskripsi |
| --- | --- | --- | --- |
| `appKey` | string | — | Application Key (wajib) |
| `product` | string | `popup` | Mode tampilan: popup | float | embed | bind |
| `action` | string | `default` | Scene bisnis (mis. login, register, pay). Server menerapkan kebijakan keamanan yang berbeda per scene. |
| `lang` | string | `en` | Bahasa yang didukung: zh-CN / zh-TW / en / ja / ko / ms / vi / id |
| `serverToken` | string | — | Token sekali pakai (sct_xxx) yang diterbitkan server Anda. Sangat direkomendasikan di production untuk mencegah penyalahgunaan refresh challenge tanpa batas. |
| `onServerTokenExpired` | `() => Promise<string>` | — | Dipanggil saat serverToken kedaluwarsa; kembalikan token baru agar SDK dapat melanjutkan tanpa memutus flow. |
| `enableVoice` | boolean | `true` | Tampilkan titik masuk audio captcha (dukungan aksesibilitas bagi pengguna tunanetra). |

## Validasi sisi server

After `onSuccess`, send `res.token` (prefix `pt_`) to your own backend, then validate it server-side:

```bash
POST https://apiv1.captcha.la/v1/validate
X-App-Key: YOUR_APP_KEY
X-App-Secret: YOUR_APP_SECRET
Content-Type: application/json

{ "pass_token": "<token>" }
```

Lihat [Referensi API](./api-reference) untuk endpoint validasi lengkap.