### Install Credits for Laravel with Composer and Artisan

Source: https://github.com/roundly-consulting/credits-for-laravel/blob/main/README.md

Run these commands to install the package, publish its migrations, and run migrations. Requires PHP 8.4 with ext-bcmath, Laravel 12 or 13, and MySQL or PostgreSQL (SQLite for tests; SQL Server not supported). Set CREDITS_KEY_TYPE before migrating if your models use UUID/ULID keys.

```bash
composer require roundly-consulting/credits-for-laravel
php artisan vendor:publish --tag="credits-migrations"
php artisan migrate
```

--------------------------------

### Make an Eloquent Model Creditable with HasCredits

Source: https://github.com/roundly-consulting/credits-for-laravel/blob/main/README.md

Use the HasCredits trait and implement the Creditable interface to enable credit functionality on any Eloquent model. This example shows a User model.

```php
use Illuminate\Database\Eloquent\Model;
use RoundlyConsulting\Credits\Interfaces\Creditable;
use RoundlyConsulting\Credits\Traits\HasCredits;

final class User extends Model implements Creditable
{
    use HasCredits;
}
```

--------------------------------

### Add, Deduct, and Query Credits with Credits Facade

Source: https://github.com/roundly-consulting/credits-for-laravel/blob/main/README.md

Demonstrates the main Credits facade methods: add, deduct, balance (including as-of a point in time), has, and bucket. Deducting below the floor throws InsufficientCreditsException. Buckets create independent credit pools.

```php
use RoundlyConsulting\Credits\Facades\Credits;

Credits::for($user)->add(100, 'Welcome');                          // a ledger row
Credits::for($user)->deduct(30, 'Order #42', ['order_id' => 42]);  // InsufficientCreditsException below the floor

Credits::for($user)->balance();                                    // 70
Credits::for($user)->balance(now()->subWeek());                    // as of a point in time
Credits::for($user)->has(50);                                      // true

$points = Credits::for($user)->bucket('points');                   // an independent pool
$points->add(500, 'Loyalty bonus');
$points->balance();                                                // 500
```