Mollie Api Php Laravel Package

Technical Evaluation

Architecture Fit

• Laravel Compatibility: The package is PHP-based and leverages Composer, making it natively compatible with Laravel’s dependency management and autoloading systems. Laravel’s service container can easily instantiate the \Mollie\Api\MollieApiClient and bind it as a singleton or context-bound service.
• Domain Alignment: Mollie’s API aligns well with Laravel’s e-commerce and payment workflows (e.g., Laravel Cashier, Breeze, or custom checkout flows). The package supports webhooks, recurring payments, and multi-currency transactions, which are critical for financial systems.
• Event-Driven Architecture: Mollie’s webhook system integrates seamlessly with Laravel’s event/queue system (e.g., queue:listen for processing webhook payloads asynchronously). The package includes built-in signature validation for security.
• Testing Support: The package provides mocking utilities (e.g., MockEvent, fake retain requests) and test-mode APIs, which align with Laravel’s testing tools (Pest, PHPUnit) and factories.

Integration Feasibility

• Low Friction: The package abstracts Mollie’s REST API into request/response objects (e.g., CreatePaymentRequest, Payment resource), reducing boilerplate for HTTP clients, serialization, and error handling.
• Laravel-Specific Enhancements:
  • Service Provider: Can be bootstrapped in AppServiceProvider to configure the client globally (e.g., API keys from .env).
  • Middleware: Webhook routes can use Laravel’s middleware (e.g., ValidateSignature) for security.
  • Queues: Webhook processing can be offloaded to Laravel Queues for scalability.
  • Validation: Laravel’s Form Request validation can validate payment inputs before creating requests.
• Database Integration: Payment data (e.g., id, status, amount) can be stored in Laravel’s database for reconciliation or reporting.

Technical Risk

Key Questions

1. Payment Flow Complexity:

   • Will the application use one-time payments, subscriptions, or recurring mandates? Mollie’s package supports all, but subscriptions require additional Laravel logic (e.g., scheduling jobs for renewals).
   • Example: Use Laravel’s scheduler to check for failed subscriptions and trigger retries.

2. Webhook Handling:

   • How will webhooks be processed? Synchronously (routes) or asynchronously (queues)? Laravel’s queue:listen is recommended for scalability.
   • Example: Create a MollieWebhookHandler service to process events like payment.authorized or subscription.cancelled.

3. Error Recovery:

   • How will failed payments/subscriptions be handled? Mollie’s API returns pending or failed statuses; Laravel can use observers or queued jobs to retry or notify users.
   • Example: Log failed payments to laravel.log and send emails via Laravel Notifications.

4. Testing Strategy:

   • Will tests use Mollie’s test mode or a mock client? The package provides MockEvent for unit tests; integration tests should use test API keys.
   • Example: Use Pest’s mock() to simulate webhook payloads in feature tests.

5. Multi-Tenant Support:

   • If the app is multi-tenant, will each tenant have a dedicated Mollie account? Laravel’s context binding (e.g., tenant()->mollieClient) can manage per-tenant API keys.

6. Compliance:

   • Does the application need to comply with PCI DSS or GDPR? Mollie is PCI-compliant, but Laravel’s logging and data storage must also adhere to regulations (e.g., encrypting payment metadata).

Integration Approach

Stack Fit

Migration Path

1. Phase 1: Setup and Configuration

   • Install the package: composer require mollie/mollie-api-php.
   • Configure API keys in .env:

     MOLLIE_API_KEY=test_dHar4XY7LxsDOtmnkVtjNVWXLSlXsM
     MOLLIE_WEBHOOK_SECRET=whsec_test_...
     

   • Bind the client in AppServiceProvider:

     $this->app->singleton(MollieApiClient::class, function ($app) {
         $client = new MollieApiClient();
         $client->setToken(config('services.mollie.api_key'));
         return $client;
     });
     

2. Phase 2: Core Payment Integration

   • Implement a PaymentService to handle creation/refunds:

     use Mollie\Api\Http\Requests\CreatePaymentRequest;
     use Mollie\Api\Http\Data\Money;
     
     class PaymentService {
         public function createPayment(float $amount, string $currency, string $description) {
             $payment = $this->mollieClient->send(new CreatePaymentRequest(
                 description: $description,
                 amount: new Money($currency, $amount),
                 redirectUrl: route('payment.redirect'),
                 webhookUrl: route