Backend Architecture Service Layer

When to use this skill

• Complex business logic
• Reusable operations
• Keeping controllers thin
• Testing business logic

Workflow

• ] Create service classes
• ] Inject dependencies
• ] Keep one responsibility per service
• ] Return DTOs or entities

- ] Handle business rules

Instructions

Service Class

php
<?php

namespace App\Services;

use App\Models\OrderModel;
use App\Entities\Order;

class OrderService
{
    public function __construct(
        private OrderModel $orderModel,
        private PaymentService $paymentService,
        private EmailService $emailService
    ) {}

    public function createOrder(array $data): Order
    {
        $order = $this->orderModel->insert($data);
        $this->paymentService->process($order);
        $this->emailService->sendConfirmation($order);
        return $order;
    }
}

Resources

• Services encapsulate business logic
• Inject all dependencies
• Keep services focused