Modularising the Monolith - PHP Conference Japan 2022

様々なロジックが密に結合したモノリシックなアプリケーションは開発速度を遅くする一方で、マイクロサービスアーキテクチャはサービス間のコミュニケーションやトランザクションなどといった別の課題があります。
モジュラーモノリスは、モノリシックなアプリケーションの中にドメイン境界を引いて疎結合な状態をつくる、モノリスとマイクロサービスの中間的なアーキテクチャです。

このトークでは、モジュラーモノリスをLaravelアプリケーションに適用する方法を具体例を用いながら紹介します。Laravelを例にしていますが、他のフレームワークにも適用できる内容です。

Transcript

1. Modularising the Monolith
   PHP Conference Japan 2022
   Ryuta Hamasaki ᖛཽ࡚ଠ
   

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2. RYUTA HAMASAKI
   @avosalmon
   

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3. View Slide

4. Verification Solutions
   Service Provider
   >1M
   Accredified
   documents
   9 markets
   3 industries
   >9M
   verifications
   >500
   Active issuers
   A B O U T A C C R E D I F Y
   

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5. Modularising the Monolith
   

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6. "HFOEB
   w ϞϊϦεͱϚΠΫϩαʔϏεͷϝϦοτɾσϝϦοτ
   w ϞδϡϥʔϞϊϦεͱ͸
   w -BSBWFMΞϓϦέʔγϣϯͷϞδϡʔϧԽ
   w Ϟδϡʔϧؒͷίϛϡχέʔγϣϯ
   w ϞδϡϥʔϞϊϦεͳΞϓϦέʔγϣϯͷςετ
   w ੩తίʔυղੳͰυϝΠϯڥքΛڧ੍
   

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7. -BSBDPO0OMJOF
   https://youtu.be/0Rq-yHAwYjQ?t=4061
   

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8. .POPMJUIWT.JDSPTFSWJDFT
   

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9. 4)*15)&130%6$5
   505)&."3,&5'*345
   

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10. ϞϊϦεͷϝϦοτ
    w ͭͷϦϙδτϦ
    w ͭͷ$*$%ύΠϓϥΠϯ
    w ηοτͷΠϯϑϥ
    w %#τϥϯβΫγϣϯ͕γϯϓϧ
    

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11. #JH#BMMPG.VE
    

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12. w ػೳؒͷີ݁߹
    w υϝΠϯڥք͕ͳ͍
    w ͢΂ͯͷίʔυΛͲ͔͜ΒͰ΋ݺͼग़ͤΔ
    w ϦϙδτϦશମͷίʔυΛཧղ͢Δඞཁ͕͋Δ
    #JH#BMMPG.VE
    

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13. .JDSPTFSWJDFT"SDIJUFDUVSF
    HTTP HTTP HTTP
    

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14. ϚΠΫϩαʔϏεͷϝϦοτ
    w υϝΠϯؒͷڥք͕໌֬
    w ֤αʔϏεΛݸผʹσϓϩΠͰ͖Δ
    w αʔϏε͝ͱʹεέʔϧΞ΢τͰ͖Δ
    w αʔϏε͝ͱʹҟͳΔٕज़ελοΫΛ࢖͑Δ
    

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15. ϚΠΫϩαʔϏεͷ՝୊
    w ෳ਺ϦϙδτϦͷ؅ཧ
    w ෳ਺ͷ$*$%ύΠϓϥΠϯ
    w αʔϏεؒ௨৴ͷωοτϫʔΫΦʔόʔϔου
    w αʔϏεΛ·͍ͨͩτϥϯβΫγϣϯ
    

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16. ٕज़తҙࢥܾఆτϨʔυΦϑ
    

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17. .PEVMBS.POPMJUI
    

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18. .PEVMBS.POPMJUI
    Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Inventory module Order module Payment module
    

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19. Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Inventory module Order module Payment module
    .PEVMBS.POPMJUI
    

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20. Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Inventory service Order module Payment module
    ஈ֊తͳϚΠΫϩαʔϏεԽ
    

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21. %JTUSJCVUFE#JH#BMMTPG.VE
    

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22. ϚΠΫϩαʔϏε͸มߋίετ͕ߴ͍
    HTTP HTTP HTTP
    

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23. ϞδϡϥʔϞϊϦε͸มߋίετ͕௿͍
    Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Contracts
    Implementation
    Tests
    Inventory module Order module Payment module
    

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24. ϞδϡʔϧͱνʔϜߏ੒
    Order
    
    
    Module
    Payment
    
    
    Module
    Shipping
    
    
    Module
    Campaign
    
    
    Module
    Auth
    
    
    Module
    Inventory
    
    
    Module
    

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25. ϞδϡϥʔϞϊϦε͸
    େن໛։ൃʹ΋༗ޮʁ
    

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26. https://shopify.engineering/deconstructing-monolith-designing-software-maximizes-developer-productivity
    

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27. ϞδϡϥʔϞϊϦεʹదͨ͠ΞϓϦέʔγϣϯ
    w ෳ਺ͷϏδωευϝΠϯΛ΋ͭϞϊϦε
    w νʔϜͷ෼ׂΛݕ౼͍ͯ͠Δ
    w ϚΠΫϩαʔϏεͷલஈ֊ͱͯ͠
    

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28. ϞδϡϥʔϞϊϦεͷσϝϦοτ
    w ςετͷ࣮ߦ͕࣌ؒ௕͘ͳΔ
    w (JUSFCBTFͷස౓͕ߴ͘ͳΔ
    w Ϟδϡʔϧ͝ͱʹεέʔϧΞ΢τͰ͖ͳ͍
    

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29. .PEVMBSJTJOH-BSBWFM
    

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30. %&'"6-5
    4536$563&
    

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31. .0%6-"3
    4536$563&
    

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32. .0%6-"3
    4536$563&
    

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33. View Slide

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38. 
    
    use Illuminate\Support\Facades\Route;
    
    
    Route::prefix('order-module')
    
    
    ->middleware(['api', 'auth:sanctum'])
    
    
    ->group(function () {
    
    
    Route::apiResource('orders', OrderController::class);
    
    
    });
    
    
    // src/Order/routes.php
    

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39. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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40. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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41. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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42. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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43. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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44. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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45. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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46. namespace Phpcon\Order\Providers;
    
    
    class OrderServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    $this->loadRoutesFrom(__DIR__.'/../routes.php');
    
    
    $this->loadMigrationsFrom(__DIR__.'/../Infrastructure/Database/Migrations');
    
    
    $this->loadTranslationsFrom(__DIR__.'/../Resources/lang', 'order');
    
    
    $this->loadViewsFrom(__DIR__.'/../Resources/views', 'order');
    
    
    }
    
    
    public function register()
    
    
    {
    
    
    $this->mergeConfigFrom(__DIR__.'/../config/order.php', 'order');
    
    
    $this->commands([DoSomething::class]);
    
    
    $this->app->register(AuthServiceProvider::class);
    
    
    $this->app->register(EventServiceProvider::class);
    
    
    $this->app->register(RouteServiceProvider::class);
    
    
    }
    
    
    }
    

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47. namespace Phpcon\Order\Providers;
    
    
    use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
    
    
    use Laracon\Order\Application\Policies\OrderPolicy;
    
    
    use Laracon\Order\Domain\Models\Order;
    
    
    class AuthServiceProvider extends ServiceProvider
    
    
    {
    
    
    protected $policies = [
    
    
    Order::class => OrderPolicy::class,
    
    
    ];
    
    
    public function boot()
    
    
    {
    
    
    $this->registerPolicies();
    
    
    }
    
    
    }
    

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48. namespace Phpcon\Order\Providers;
    
    
    use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
    
    
    use Laracon\Order\Domain\Listeners\HandleOrderShipment;
    
    
    use Laracon\Shipping\Contracts\Events\ParcelShipped;
    
    
    class EventServiceProvider extends ServiceProvider
    
    
    {
    
    
    /**
    
    
    * The event listener mappings for the application.
    
    
    *
    
    
    * @var array
    
    
    */
    
    
    protected $listen = [
    
    
    ParcelShipped::class => [
    
    
    HandleOrderShipment::class,
    
    
    ],
    
    
    ];
    
    
    }
    

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49. namespace Phpcon\Order\Providers;
    
    
    use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
    
    
    use Illuminate\Support\Facades\Route;
    
    
    use Phpcon\Order\Application\Http\Middleware\SomeMiddleware;
    
    
    use Phpcon\Order\Domain\Models\Order;
    
    
    class RouteServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function boot()
    
    
    {
    
    
    Route::bind('order', function ($value) {
    
    
    return Order::with('orderLines')->findOrFail($value);
    
    
    });
    
    
    $this->app[‘router']->aliasMiddleware('do-something', SomeMiddleware::class);
    
    
    }
    
    
    }
    

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50. 'providers' => [
    
    
    // ...
    
    
    \Phpcon\Inventory\Providers\InventoryServiceProvider::class,
    
    
    \Phpcon\Order\Providers\OrderServiceProvider::class,
    
    
    \Phpcon\Payment\Providers\PaymentServiceProvider::class,
    
    
    \Phpcon\Shipping\Providers\ShippingServiceProvider::class,
    
    
    ],
    // config/app.php
    

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51. {
    
    
    "autoload": {
    
    
    "psr-4": {
    
    
    "App\\": "app/",
    
    
    "Phpcon\\": "src/",
    
    
    "Database\\Factories\\": "database/factories/",
    
    
    "Database\\Seeders\\": "database/seeders/"
    
    
    }
    
    
    }
    
    
    }
    // composer.json
    

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52. {
    
    
    "autoload": {
    
    
    "psr-4": {
    
    
    "App\\": "app/",
    
    
    "Phpcon\\": "src/",
    
    
    "Database\\Factories\\": "database/factories/",
    
    
    "Database\\Seeders\\": "database/seeders/"
    
    
    }
    
    
    }
    
    
    }
    // composer.json
    

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53. άϩʔόϧͳΫϥε͸Ͳ͜ʹஔ͘ʁ
    

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54. Ϟδϡʔϧؒͷίϛϡχέʔγϣϯ
    

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55. ίϯτϥΫτʹΑΔίϛϡχέʔγϣϯ
    Module A Module B
    Contract Implementation
    Downstream Upstream
    

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56. Module A Module B
    ίϯτϥΫτແ͠ͷίϛϡχέʔγϣϯ
    Downstream Upstream
    Implementation
    

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57. Order
    Inventory
    Payment
    Shipping
    Payment
    
    
    Provider
    Warehouse
    
    
    System
    Cart
    Cart
    
    
    Item
    Order
    Order
    
    
    Line
    

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58. Order
    Inventory
    Payment
    Shipping
    Payment
    
    
    Provider
    Warehouse
    
    
    System
    Cart
    Cart
    
    
    Item
    Order
    Order
    
    
    Line
    1. Checkout
    

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59. Order
    Inventory
    Payment
    Shipping
    Payment
    
    
    Provider
    Warehouse
    
    
    System
    Cart
    Cart
    
    
    Item
    Order
    Order
    
    
    Line
    2. Update inventory
    1. Checkout
    

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60. Order
    Inventory
    Payment
    Shipping
    Payment
    
    
    Provider
    Warehouse
    
    
    System
    Cart
    Cart
    
    
    Item
    Order
    Order
    
    
    Line
    2. Update inventory
    3. Process payment
    1. Checkout
    

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61. Order
    Inventory
    Payment
    Shipping
    Payment
    
    
    Provider
    Warehouse
    
    
    System
    Cart
    Cart
    
    
    Item
    Order
    Order
    
    
    Line
    2. Update inventory
    3. Process payment
    4. Save order
    1. Checkout
    

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62. Order
    Inventory
    Payment
    Shipping
    Payment
    
    
    Provider
    Warehouse
    
    
    System
    Cart
    Cart
    
    
    Item
    Order
    Order
    
    
    Line
    2. Update inventory
    3. Process payment
    5. Notify warehouse
    4. Save order
    1. Checkout
    

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63. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

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64. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

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65. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

66. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

67. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

68. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

69. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

70. class OrderController extends Controller
    
    
    {
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

71. namespace Laracon\Order\Domain\Models;
    
    
    class CartItem extends Model
    
    
    {
    
    
    // ...
    
    
    public function cart(): BelongsTo
    
    
    {
    
    
    return $this->belongsTo(Cart::class);
    
    
    }
    
    
    public function product(): BelongsTo
    
    
    {
    
    
    return $this->belongsTo(Product::class);
    
    
    }
    
    
    }
    

    View Slide

72. namespace Laracon\Order\Domain\Models;
    
    
    class CartItem extends Model
    
    
    {
    
    
    // ...
    
    
    public function cart(): BelongsTo
    
    
    {
    
    
    return $this->belongsTo(Cart::class);
    
    
    }
    
    
    public function product(): BelongsTo
    
    
    {
    
    
    return $this->belongsTo(Product::class);
    
    
    }
    
    
    }
    

    View Slide

73. // src/Inventory/Contracts/ProductService.php
    
    
    namespace Laracon\Inventory\Contracts;
    
    
    interface ProductService
    
    
    {
    
    
    /**
    
    
    * Decrement product stock.
    
    
    */
    
    
    public function decrementStock(int $productId, int $quantity): void;
    
    
    }
    

    View Slide

74. namespace Laracon\Inventory\Infrastructure\Services;
    
    
    use Laracon\Inventory\Contracts\ProductService as ProductServiceContract;
    
    
    class ProductService implements ProductServiceContract
    
    
    {
    
    
    public function decrementStock(int $productId, int $quantity): void
    
    
    {
    
    
    $product = Product::find($productId);
    
    
    if (!$product) {
    
    
    throw new ProductNotFoundException($productId);
    
    
    }
    
    
    if ($product->stock < $quantity) {
    
    
    throw new OutOfStockException($productId);
    
    
    }
    
    
    if (!$product->is_active) {
    
    
    throw new InactiveProductException($productId);
    
    
    }
    
    
    $product->decrement('stock', $quantity);
    
    
    }
    
    
    }
    

    View Slide

75. namespace Laracon\Inventory\Infrastructure\Services;
    
    
    use Laracon\Inventory\Contracts\ProductService as ProductServiceContract;
    
    
    class ProductService implements ProductServiceContract
    
    
    {
    
    
    public function decrementStock(int $productId, int $quantity): void
    
    
    {
    
    
    $product = Product::find($productId);
    
    
    if (!$product) {
    
    
    throw new ProductNotFoundException($productId);
    
    
    }
    
    
    if ($product->stock < $quantity) {
    
    
    throw new OutOfStockException($productId);
    
    
    }
    
    
    if (!$product->is_active) {
    
    
    throw new InactiveProductException($productId);
    
    
    }
    
    
    $product->decrement('stock', $quantity);
    
    
    }
    
    
    }
    

    View Slide

76. namespace Laracon\Inventory\Providers;
    
    
    use Laracon\Inventory\Contracts\ProductService as ProductServiceContract;
    
    
    use Laracon\Inventory\Infrastructure\Services\ProductService;
    
    
    class InventoryServiceProvider extends ServiceProvider
    
    
    {
    
    
    public $bindings = [
    
    
    ProductServiceContract::class => ProductService::class,
    
    
    ];
    
    
    // ...
    
    
    }
    
    
    

    View Slide

77. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    // ...
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

78. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $cartItem->product->decrement('stock', $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    // ...
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

79. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $this->productService->decrementStock($cartItem->product_id, $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    // ...
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

80. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $this->productService->decrementStock($cartItem->product_id, $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    // ...
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

81. namespace Laracon\Order\Domain\Models;
    
    
    use Laracon\Inventory\Domain\Models\Product;
    
    
    class Order extends Model
    
    
    {
    
    
    // ...
    
    
    protected $orderLines = [];
    
    
    public function orderLines(): HasMany
    
    
    {
    
    
    return $this->hasMany(OrderLine::class);
    
    
    }
    
    
    public function addOrderLine(Product $product, int $quantity): void
    
    
    {
    
    
    $orderLine = new OrderLine([
    
    
    'product_id' => $product->id,
    
    
    'product_name' => $product->name,
    
    
    'price' => $product->price,
    
    
    'quantity' => $quantity,
    
    
    ]);
    
    
    $this->orderLines[] = $orderLine;
    
    
    }
    
    
    }
    

    View Slide

82. namespace Laracon\Order\Domain\Models;
    
    
    use Laracon\Inventory\Domain\Models\Product;
    
    
    class Order extends Model
    
    
    {
    
    
    // ...
    
    
    protected $orderLines = [];
    
    
    public function orderLines(): HasMany
    
    
    {
    
    
    return $this->hasMany(OrderLine::class);
    
    
    }
    
    
    public function addOrderLine(Product $product, int $quantity): void
    
    
    {
    
    
    $orderLine = new OrderLine([
    
    
    'product_id' => $product->id,
    
    
    'product_name' => $product->name,
    
    
    'price' => $product->price,
    
    
    'quantity' => $quantity,
    
    
    ]);
    
    
    $this->orderLines[] = $orderLine;
    
    
    }
    
    
    }
    

    View Slide

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    w 1010 1MBJO0ME1)10CKFDU
    
    

    View Slide

84. namespace Laracon\Inventory\Contracts\DataTransferObjects;
    
    
    class ProductDto
    
    
    {
    
    
    public function __construct(
    
    
    public readonly int $id,
    
    
    public readonly string $name,
    
    
    public readonly int $price,
    
    
    ) {}
    
    
    }
    

    View Slide

85. namespace Laracon\Inventory\Contracts;
    
    
    use Laracon\Inventory\Contracts\DataTransferObjects\ProductDto;
    
    
    interface ProductService
    
    
    {
    
    
    /**
    
    
    * Get product by product id.
    
    
    */
    
    
    public function getProductById(int $productId): ProductDto;
    
    
    }
    

    View Slide

86. namespace Laracon\Inventory\Infrastructure\Services;
    
    
    use Laracon\Inventory\Contracts\DataTransferObjects\ProductDto;
    
    
    use Laracon\Inventory\Contracts\ProductService as ProductServiceContract;
    
    
    use Laracon\Inventory\Domain\Models\Product;
    
    
    class ProductService implements ProductServiceContract
    
    
    {
    
    
    public function getProductById(int $productId): ProductDto
    
    
    {
    
    
    $product = Product::find($productId);
    
    
    if (!$product) {
    
    
    throw new ProductNotFoundException($productId);
    
    
    }
    
    
    return new ProductDto(
    
    
    $product->id,
    
    
    $product->name,
    
    
    $product->price,
    
    
    );
    
    
    }
    
    
    }
    

    View Slide

87. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $this->productService->decrementStock($cartItem->product_id, $cartItem->quantity);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    // ...
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

88. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $this->productService->decrementStock($cartItem->product_id, $cartItem->quantity);
    
    
    $product = $this->productService->getProductById($cartItem->product_id);
    
    
    $order->addOrderLine($cartItem->product, $cartItem->quantity);
    
    
    });
    
    
    // ...
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

89. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    $cart->cartItems->each(function (CartItem $cartItem) use ($order) {
    
    
    $this->productService->decrementStock($cartItem->product_id, $cartItem->quantity);
    
    
    $product = $this->productService->getProductById($cartItem->product_id);
    
    
    $order->addOrderLine($product, $cartItem->quantity);
    
    
    });
    
    
    // ...
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

90. namespace Laracon\Order\Domain\Models;
    
    
    use Laracon\Inventory\Domain\Models\Product;
    
    
    class Order extends Model
    
    
    {
    
    
    // ...
    
    
    protected $orderLines = [];
    
    
    public function addOrderLine(Product $product, int $quantity): void
    
    
    {
    
    
    $orderLine = new OrderLine([
    
    
    'product_id' => $product->id,
    
    
    'product_name' => $product->name,
    
    
    'price' => $product->price,
    
    
    'quantity' => $quantity,
    
    
    ]);
    
    
    $this->orderLines[] = $orderLine;
    
    
    }
    
    
    }
    

    View Slide

91. namespace Laracon\Order\Domain\Models;
    
    
    use Laracon\Inventory\Domain\Models\Product;
    
    
    class Order extends Model
    
    
    {
    
    
    // ...
    
    
    protected $orderLines = [];
    
    
    public function addOrderLine(Product $product, int $quantity): void
    
    
    {
    
    
    $orderLine = new OrderLine([
    
    
    'product_id' => $product->id,
    
    
    'product_name' => $product->name,
    
    
    'price' => $product->price,
    
    
    'quantity' => $quantity,
    
    
    ]);
    
    
    $this->orderLines[] = $orderLine;
    
    
    }
    
    
    }
    

    View Slide

92. namespace Laracon\Order\Domain\Models;
    
    
    use Laracon\Inventory\Contracts\DataTransferObjects\ProductDto;
    
    
    class Order extends Model
    
    
    {
    
    
    // ...
    
    
    protected $orderLines = [];
    
    
    public function addOrderLine(ProductDto $product, int $quantity): void
    
    
    {
    
    
    $orderLine = new OrderLine([
    
    
    'product_id' => $product->id,
    
    
    'product_name' => $product->name,
    
    
    'price' => $product->price,
    
    
    'quantity' => $quantity,
    
    
    ]);
    
    
    $this->orderLines[] = $orderLine;
    
    
    }
    
    
    }
    

    View Slide

93. namespace Laracon\Order\Domain\Models;
    
    
    use Laracon\Inventory\Contracts\DataTransferObjects\ProductDto;
    
    
    class Order extends Model
    
    
    {
    
    
    // ...
    
    
    protected $orderLines = [];
    
    
    public function addOrderLine(ProductDto $product, int $quantity): void
    
    
    {
    
    
    $orderLine = new OrderLine([
    
    
    'product_id' => $product->id,
    
    
    'product_name' => $product->name,
    
    
    'price' => $product->price,
    
    
    'quantity' => $quantity,
    
    
    ]);
    
    
    $this->orderLines[] = $orderLine;
    
    
    }
    
    
    }
    

    View Slide

94. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    // ...
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

    View Slide

95. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(private ProductService $productService) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    $cart = Cart::with('cartItems')->findOrFail($request->cart_id);
    
    
    $order = new Order(['user_id' => $request->user()->id]);
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    // ...
    
    
    $order->checkout();
    
    
    $stripe = new StripePayment(config(‘services.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

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96. namespace Laracon\Payment\Contracts;
    
    
    interface PaymentService
    
    
    {
    
    
    /**
    
    
    * Process payment for the given amount.
    
    
    */
    
    
    public function charge(int $orderId, int $amount): void;
    
    
    }
    

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97. namespace Laracon\Payment\Infrastructure\Services;
    
    
    use Stripe\StripeClient;
    
    
    use Laracon\Payment\Contracts\PaymentService as PaymentServiceContract;
    
    
    class StripePayment implements PaymentServiceContract
    
    
    {
    
    
    private StripeClient $stripe;
    
    
    public function __construct(string $stripeKey) {
    
    
    $this->stripe = new StripeClient($stripeKey);
    
    
    }
    
    
    public function charge(int $orderId, int $amount): void
    
    
    {
    
    
    $this->stripe->charges->create([
    
    
    'amount' => $amount,
    
    
    'currency' => 'usd',
    
    
    ]);
    
    
    // ...
    
    
    }
    
    
    }
    

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98. namespace Laracon\Payment\Providers;
    
    
    use Illuminate\Support\ServiceProvider;
    
    
    use Laracon\Payment\Contracts\PaymentService as PaymentServiceContract;
    
    
    use Laracon\Payment\Infrastructure\Services\StripePayment;
    
    
    class PaymentServiceProvider extends ServiceProvider
    
    
    {
    
    
    public function register()
    
    
    {
    
    
    $this->app->bind(PaymentServiceContract::class, function ($app) {
    
    
    return new StripePayment(config(‘services.stripe.key'));
    
    
    });
    
    
    }
    
    
    }
    

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99. use Laracon\Inventory\Contracts\ProductService;
    
    
    class OrderController extends Controller
    
    
    {
    
    
    public function __construct(
    
    
    private ProductService $productService,
    
    
    ) {}
    
    
    public function store(StoreOrderRequest $request)
    
    
    {
    
    
    // ...
    
    
    try {
    
    
    DB::transaction(function () use ($order, $cart) {
    
    
    // ...
    
    
    $stripe = new StripePayment(config('service.stripe.key'));
    
    
    $stripe->charge($order->id, $order->total_amount);
    
    
    });
    
    
    } catch (\Exception $e) {
    
    
    abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
    
    
    }
    
    
    return new OrderResource($order);
    
    
    }
    
    
    }
    

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100. use Laracon\Inventory\Contracts\ProductService;
     
     
     use Laracon\Payment\Contracts\PaymentService;
     
     
     class OrderController extends Controller
     
     
     {
     
     
     public function __construct(
     
     
     private ProductService $productService,
     
     
     private PaymentService $paymentService,
     
     
     ) {}
     
     
     public function store(StoreOrderRequest $request)
     
     
     {
     
     
     // ...
     
     
     try {
     
     
     DB::transaction(function () use ($order, $cart) {
     
     
     // ...
     
     
     $stripe = new StripePayment(config('service.stripe.key'));
     
     
     $stripe->charge($order->id, $order->total_amount);
     
     
     });
     
     
     } catch (\Exception $e) {
     
     
     abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
     
     
     }
     
     
     return new OrderResource($order);
     
     
     }
     
     
     }
     

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101. use Laracon\Inventory\Contracts\ProductService;
     
     
     use Laracon\Payment\Contracts\PaymentService;
     
     
     class OrderController extends Controller
     
     
     {
     
     
     public function __construct(
     
     
     private ProductService $productService,
     
     
     private PaymentService $paymentService,
     
     
     ) {}
     
     
     public function store(StoreOrderRequest $request)
     
     
     {
     
     
     // ...
     
     
     try {
     
     
     DB::transaction(function () use ($order, $cart) {
     
     
     // ...
     
     
     $stripe = new StripePayment(config('service.stripe.key'));
     
     
     $stripe->charge($order->id, $order->total_amount);
     
     
     });
     
     
     } catch (\Exception $e) {
     
     
     abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
     
     
     }
     
     
     return new OrderResource($order);
     
     
     }
     
     
     }
     

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102. use Laracon\Inventory\Contracts\ProductService;
     
     
     use Laracon\Payment\Contracts\PaymentService;
     
     
     class OrderController extends Controller
     
     
     {
     
     
     public function __construct(
     
     
     private ProductService $productService,
     
     
     private PaymentService $paymentService,
     
     
     ) {}
     
     
     public function store(StoreOrderRequest $request)
     
     
     {
     
     
     // ...
     
     
     try {
     
     
     DB::transaction(function () use ($order, $cart) {
     
     
     // ...
     
     
     $stripe->charge($order->id, $order->total_amount);
     
     
     });
     
     
     } catch (\Exception $e) {
     
     
     abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
     
     
     }
     
     
     return new OrderResource($order);
     
     
     }
     
     
     }
     

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103. use Laracon\Inventory\Contracts\ProductService;
     
     
     use Laracon\Payment\Contracts\PaymentService;
     
     
     class OrderController extends Controller
     
     
     {
     
     
     public function __construct(
     
     
     private ProductService $productService,
     
     
     private PaymentService $paymentService,
     
     
     ) {}
     
     
     public function store(StoreOrderRequest $request)
     
     
     {
     
     
     // ...
     
     
     try {
     
     
     DB::transaction(function () use ($order, $cart) {
     
     
     // ...
     
     
     $this->paymentService->charge($order->id, $order->total_amount);
     
     
     });
     
     
     } catch (\Exception $e) {
     
     
     abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
     
     
     }
     
     
     return new OrderResource($order);
     
     
     }
     
     
     }
     

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104. namespace Laracon\Payment\Providers;
     
     
     use Illuminate\Support\ServiceProvider;
     
     
     use Laracon\Payment\Contracts\PaymentService as PaymentServiceContract;
     
     
     use Laracon\Payment\Infrastructure\Services\StripePayment;
     
     
     class PaymentServiceProvider extends ServiceProvider
     
     
     {
     
     
     public function register()
     
     
     {
     
     
     $this->app->bind(PaymentServiceContract::class, function ($app) {
     
     
     return new StripePayment(config(‘services.stripe.key'));
     
     
     });
     
     
     }
     
     
     }
     

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105. namespace Laracon\Payment\Providers;
     
     
     use Illuminate\Support\ServiceProvider;
     
     
     use Laracon\Payment\Contracts\PaymentService as PaymentServiceContract;
     
     
     use Laracon\Payment\Infrastructure\Services\PaddlePayment;
     
     
     class PaymentServiceProvider extends ServiceProvider
     
     
     {
     
     
     public function register()
     
     
     {
     
     
     $this->app->bind(PaymentServiceContract::class, function ($app) {
     
     
     return new PaddlePayment(config(‘services.paddle.key’));
     
     
     });
     
     
     }
     
     
     }
     

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106. Order
     Inventory
     Payment
     Shipping
     Payment
     
     
     Provider
     Warehouse
     
     
     System
     Cart
     Cart
     
     
     Item
     Order
     Order
     
     
     Line
     2. Update inventory
     3. Process payment
     5. Notify warehouse
     4. Save order
     1. Checkout
     

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107. Order
     Inventory
     Payment
     Shipping
     Payment
     
     
     Provider
     Warehouse
     
     
     System
     Cart
     Cart
     
     
     Item
     Order
     Order
     
     
     Line
     OrderFul
     fi
     lled
     Publish
     Subscribe
     2. Update inventory
     3. Process payment
     4. Save order
     1. Checkout
     

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108. class OrderController extends Controller
     
     
     {
     
     
     // ...
     
     
     public function store(StoreOrderRequest $request)
     
     
     {
     
     
     // ...
     
     
     try {
     
     
     DB::transaction(function () use ($order, $cart) {
     
     
     // ...
     
     
     $this->paymentService->charge($order->id, $order->total_amount);
     
     
     });
     
     
     } catch (\Exception $e) {
     
     
     abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
     
     
     }
     
     
     return new OrderResource($order);
     
     
     }
     
     
     }
     

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109. class OrderController extends Controller
     
     
     {
     
     
     // ...
     
     
     public function store(StoreOrderRequest $request)
     
     
     {
     
     
     // ...
     
     
     try {
     
     
     DB::transaction(function () use ($order, $cart) {
     
     
     // ...
     
     
     $this->paymentService->charge($order->id, $order->total_amount);
     
     
     });
     
     
     } catch (\Exception $e) {
     
     
     abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
     
     
     }
     
     
     OrderFulfilled::dispatch($order->id);
     
     
     return new OrderResource($order);
     
     
     }
     
     
     }
     

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110. class OrderController extends Controller
     
     
     {
     
     
     // ...
     
     
     public function store(StoreOrderRequest $request)
     
     
     {
     
     
     // ...
     
     
     try {
     
     
     DB::transaction(function () use ($order, $cart) {
     
     
     // ...
     
     
     $this->paymentService->charge($order->id, $order->total_amount);
     
     
     });
     
     
     } catch (\Exception $e) {
     
     
     abort(Response::HTTP_BAD_REQUEST, trans('order::errors.failed'));
     
     
     }
     
     
     OrderFulfilled::dispatch($order->id);
     
     
     return new OrderResource($order);
     
     
     }
     
     
     }
     

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111. namespace Laracon\Shipping\Providers;
     
     
     use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
     
     
     use Laracon\Order\Contracts\Events\OrderFulfilled;
     
     
     use Laracon\Shipping\Domain\Listeners\NotifyWarehouse;
     
     
     class EventServiceProvider extends ServiceProvider
     
     
     {
     
     
     protected $listen = [
     
     
     OrderFulfilled::class => [
     
     
     NotifyWarehouse::class,
     
     
     ]
     
     
     ];
     
     
     }
     

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112. namespace Laracon\Shipping\Domain\Listeners;
     
     
     use Laracon\Order\Contracts\Events\OrderFulfilled;
     
     
     class NotifyWarehouse
     
     
     {
     
     
     public function handle(OrderFulfilled $event)
     
     
     {
     
     
     // Notify warehouse system
     
     
     }
     
     
     }
     

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113. 5FTUJOH.PEVMFT
     

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114. 
     
     
     
     
     
     
     
     
     ./src/**/Tests/Unit
     
     
     
     
     
     
     
     
     ./src/**/Tests/Feature
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     ./src
     
     
     
     
     
     
     
     
     ./src/**/Tests/*
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     

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115. 
     
     
     
     
     
     
     
     
     ./src/**/Tests/Unit
     
     
     
     
     
     
     
     
     ./src/**/Tests/Feature
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     ./src
     
     
     
     
     
     
     
     
     ./src/**/Tests/*
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     

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116. 
     
     
     
     
     
     
     
     
     ./src/**/Tests/Unit
     
     
     
     
     
     
     
     
     ./src/**/Tests/Feature
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     ./src
     
     
     
     
     
     
     
     
     ./src/**/Tests/*
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     

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117. it('creates a new order', function () {
     
     
     Event::fake();
     
     
     $user = User::factory()->create();
     
     
     $cart = Cart::factory()->create(['user_id' => $user->id]);
     
     
     // create some other test data...
     
     
     mock(ProductService::class, function ($mock) use ($product) {
     
     
     $mock->shouldReceive('decrementStock')
     
     
     ->with($product->id, 1)
     
     
     ->once();
     
     
     $mock->shouldReceive('getProductById')
     
     
     ->with($product->id)
     
     
     ->once()
     
     
     ->andReturn($product);
     
     
     });
     
     
     mock(PaymentService::class)
     
     
     ->shouldReceive('charge')
     
     
     ->once();
     
     
     // ...
     
     
     

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118. it('creates a new order', function () {
     
     
     Event::fake();
     
     
     $user = User::factory()->create();
     
     
     $cart = Cart::factory()->create(['user_id' => $user->id]);
     
     
     // create some other test data...
     
     
     mock(ProductService::class, function ($mock) use ($product) {
     
     
     $mock->shouldReceive('decrementStock')
     
     
     ->with($product->id, 1)
     
     
     ->once();
     
     
     $mock->shouldReceive('getProductById')
     
     
     ->with($product->id)
     
     
     ->once()
     
     
     ->andReturn($product);
     
     
     });
     
     
     mock(PaymentService::class)
     
     
     ->shouldReceive('charge')
     
     
     ->once();
     
     
     // ...
     
     
     

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119. it('creates a new order', function () {
     
     
     Event::fake();
     
     
     $user = User::factory()->create();
     
     
     $cart = Cart::factory()->create(['user_id' => $user->id]);
     
     
     // create some other test data...
     
     
     mock(ProductService::class, function ($mock) use ($product) {
     
     
     $mock->shouldReceive('decrementStock')
     
     
     ->with($product->id, 1)
     
     
     ->once();
     
     
     $mock->shouldReceive('getProductById')
     
     
     ->with($product->id)
     
     
     ->once()
     
     
     ->andReturn($product);
     
     
     });
     
     
     mock(PaymentService::class)
     
     
     ->shouldReceive('charge')
     
     
     ->once();
     
     
     // ...
     
     
     

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120. Ϟδϡʔϧؒͷ֎෦Ωʔ੍໿͸ີ݁߹ʹͭͳ͕Δ
     Order module Inventory module
     Cart
     
     
     Items
     Products
     product_id
     
     
     id
     
     
     

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121. it('creates a new order', function () {
     
     
     Event::fake();
     
     
     $user = User::factory()->create();
     
     
     $cart = Cart::factory()->create(['user_id' => $user->id]);
     
     
     // create some other test data...
     
     
     mock(ProductService::class, function ($mock) use ($product) {
     
     
     $mock->shouldReceive('decrementStock')
     
     
     ->with($product->id, 1)
     
     
     ->once();
     
     
     $mock->shouldReceive('getProductById')
     
     
     ->with($product->id)
     
     
     ->once()
     
     
     ->andReturn($product);
     
     
     });
     
     
     mock(PaymentService::class)
     
     
     ->shouldReceive('charge')
     
     
     ->once();
     
     
     // ...
     
     
     

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122. // ...
     
     
     $order = postJson('/order-module/orders', ['cart_id' => $cart->id])
     
     
     ->assertCreated()
     
     
     ->json('data');
     
     
     assertDatabaseHas('orders', [
     
     
     'id' => $order['id'],
     
     
     ]);
     
     
     Event::assertDispatched(OrderFulfilled::class, $order['id']);
     

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123. ϞδϡʔϧͷυϝΠϯڥքΛڧ੍
     

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124. %FQUSBDΛ࢖ͬͨ੩తίʔυղੳ
     w ϨΠϠʔΛఆٛ
     w ϨΠϠʔؒΞΫηεͷϧʔϧΛఆٛ
     w ϧʔϧʹҧ൓͍ͯ͠ΔίʔυΛݕ஌
     w ґଘؔ܎ΛՄࢹԽ
     

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125. composer require qossmic/deptrac-shim --dev
     sudo apt-get install graphviz
     // for visualising dependency graph
     

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126. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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127. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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128. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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129. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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130. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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131. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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132. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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133. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     - name: Common
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: ./app/.*
     
     
     - name: Contracts
     
     
     collectors:
     
     
     - type: directory
     
     
     regex: .*/Contracts/.*
     
     
     - name: Vendor
     
     
     collectors:
     
     
     - type: bool
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./(src|app)/.*
     
     
     - name: Inventory
     
     
     collectors:
     
     
     - type: bool
     
     
     must:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/.*
     
     
     must_not:
     
     
     - type: directory
     
     
     regex: ./src/Inventory/Contracts/.*
     // deptrac.yaml
     

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134. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     # ...
     
     
     ruleset:
     
     
     Common:
     
     
     - Vendor
     
     
     Contracts:
     
     
     - Vendor
     
     
     - Common
     
     
     Inventory:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Order:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Payment:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Shipping:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     // deptrac.yaml
     

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135. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     # ...
     
     
     ruleset:
     
     
     Common:
     
     
     - Vendor
     
     
     Contracts:
     
     
     - Vendor
     
     
     - Common
     
     
     Inventory:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Order:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Payment:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Shipping:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     // deptrac.yaml
     

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136. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     # ...
     
     
     ruleset:
     
     
     Common:
     
     
     - Vendor
     
     
     Contracts:
     
     
     - Vendor
     
     
     - Common
     
     
     Inventory:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Order:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Payment:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Shipping:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     // deptrac.yaml
     

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137. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     # ...
     
     
     ruleset:
     
     
     Common:
     
     
     - Vendor
     
     
     Contracts:
     
     
     - Vendor
     
     
     - Common
     
     
     Inventory:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Order:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Payment:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Shipping:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     // deptrac.yaml
     

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138. parameters:
     
     
     paths:
     
     
     - ./src
     
     
     - ./app
     
     
     layers:
     
     
     # ...
     
     
     ruleset:
     
     
     Common:
     
     
     - Vendor
     
     
     Contracts:
     
     
     - Vendor
     
     
     - Common
     
     
     Inventory:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Order:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Payment:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     
     
     Shipping:
     
     
     - Contracts
     
     
     - Vendor
     
     
     - Common
     // deptrac.yaml
     

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139. %FQUSBDJO$*
     

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140. View Slide

141. View Slide

142. ੩తίʔυղੳ͸׬ᘳͰ͸ͳ͍
     

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143. DB::table('products')
     
     
     ->where('id', $orderLine->product_id)
     
     
     ->decrement(‘stock', $orderLine->quantity);
     // src/Order/Domain/Models/Order.php
     

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144. ·ͱΊ
     w ϚΠΫϩαʔϏεͷલஈ֊ͱͯ͠ͷϞδϡϥʔϞϊϦε
     w ϞδϡʔϧԽ͢ΔͨΊͷσΟϨΫτϦߏ଄
     w ίϯτϥΫτΛ௨ͨ͠Ϟδϡʔϧؒ௨৴
     w ϞδϡʔϧͷςετͰ͸ɺίϯτϥΫτΛϞοΫ
     w %FQUSBDΛ࢖ͬͯυϝΠϯͷڥքΛڧ੍
     

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145. ϦϯΫू
     •https://github.com/avosalmon/modular-monolith-laravel
     
     
     •Modularising the Monolith - Laracon Online 2022
     
     
     •Deconstructing the Monolith: Designing Software that Maximizes Developer
     Productivity
     
     
     •Under Deconstruction: The State of Shopify’s Monolith
     
     
     •Long live the Monolith! Monolithic Architecture != Big Ball of Mud
     
     
     •Strategic Monoliths and Microservices
     
     
     •Domain-Driven Laravel
     

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146. THANK YOU
     @avosalmon
     

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