# Lite

## **Installation**

**NPM**

```bash
npm install @d24/sdk-minimal
```

**HTML Script Tag**

{% code overflow="wrap" %}

```html
<script type="module" src="https://d24sdk.s3.amazonaws.com/releases/d24-minimal-1.0.19.es.js"></script>
```

{% endcode %}

{% hint style="success" %}
**Ensure to install the latest version in this** [**link**](https://www.npmjs.com/package/@d24/sdk-minimal)**!**
{% endhint %}

## **Constructor**

Initializes the SDK. This must be called before any other methods.

`new SDK(publicKey, options)`

**Parameters**

<table><thead><tr><th width="210.90625">Parameter</th><th width="106.8203125">Type</th><th width="213.34765625">Description</th><th width="106.78515625">Required</th><th width="116.96484375">Possible Values</th></tr></thead><tbody><tr><td><code>publicKey</code></td><td><code>string</code></td><td>Your public API key provided by D24.</td><td>Yes</td><td><br></td></tr><tr><td><code>options</code></td><td><code>object</code></td><td>Configuration options for the SDK.</td><td>Yes</td><td><br></td></tr><tr><td><code>options.environment</code></td><td><code>string</code></td><td>The environment to use.</td><td>Yes</td><td><code>'stg'</code>, <code>'production'</code></td></tr></tbody></table>

### **Usage**

```javascript
// NPM/ESM
import SDK from '@d24/sdk-minimal';
new SDK('as1i2nxal12bvd', { environment: 'stg' });

// UMD/Script Tag
new window.D24.SDK('as1i2nxal12bvd', { environment: 'stg' });

```

#### **Errors**

| Error Message                                     | Reason                                                 |
| ------------------------------------------------- | ------------------------------------------------------ |
| `SDK was already instantiate.`                    | The SDK constructor was called more than once.         |
| `The environment [environment] is not supported.` | An invalid value was passed for `options.environment`. |

## **Methods**

**`generateToken({ card })`**

Validates credit card details and exchanges them for a secure, single-use token. This is an asynchronous method.

**Returns:** `Promise<{token: string}>` - A promise that resolves to an object containing the token.

### **Parameters**

<table><thead><tr><th width="222.890625">Parameter</th><th width="96.83984375">Type</th><th width="313.46484375">Description</th><th width="107.671875">Required</th></tr></thead><tbody><tr><td><code>card</code></td><td><code>object</code></td><td>An object containing the credit card details.</td><td>Yes</td></tr><tr><td><code>card.number</code></td><td><code>string</code></td><td>The full credit card number.</td><td>Yes</td></tr><tr><td><code>card.holder</code></td><td><code>string</code></td><td>The full name of the cardholder.</td><td>Yes</td></tr><tr><td><code>card.cvv</code></td><td><code>string</code></td><td>The 3-digit (or 4-digit for Amex) security code.</td><td>Yes</td></tr><tr><td><code>card.expirationMonth</code></td><td><code>string</code></td><td>The 2-digit expiration month (e.g., "09").</td><td>Yes</td></tr><tr><td><code>card.expirationYear</code></td><td><code>string</code></td><td>The 2-digit expiration year (e.g., "25").</td><td>Yes</td></tr></tbody></table>

### **Usage**

```javascript
const cardDetails = {
  number: '4509953566233704',
  holder: 'Juan Perez',
  cvv: '123',
  expirationMonth: '11',
  expirationYear: '25',
};

try {
  const response = await window.D24.generateToken({ card: cardDetails });
  const token = response.token;
  // Send token to your server
} catch (error) {
  // Handle validation errors from the Joi library or API errors.
  console.error(error);
}

```

**Errors**

| Error Message                                                    | Reason                                                                                                   |
| ---------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
| `You must instantiate D24CreditCardSDK before using SDK methods` | `generateToken` was called before the SDK was initialized with `new SDK()`.                              |
| (Joi Validation Error)                                           | The `card` object failed validation. The error message will describe the specific field that is invalid. |


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