Cart, Checkout, and Ownership

Goal

This snapshot advances Quaycart Market by teaching you to check out orders and protect seller product mutations.

Every numbered folder is a complete app. Run this stage independently, then compare it with the previous folder.

Prerequisites

Use PHP 8.2+, Composer, Node.js 20+, npm, and Docker for MySQL stages.

Port 8004 must be free. Copy .env.example before database stages.

• PHP and Composer
• Node.js and npm
• Docker from part 4 onward

Concepts

Checkout creates an Order and OrderItems, clears the cart, and decrements stock. Product update/delete authorize against user_id.

Livewire keeps interactive UI on the server with components; Tailwind styles the storefront; Eloquent owns persistence and authorization checks.

Walkthrough

Implement Livewire checkout and seller product create/edit/delete with Gate policies returning 403 for non-owners.

Read the example, then open the matching snapshot. The repository includes validation, CSRF, and the surrounding structure.

Gate::authorize('update', $product);
DB::transaction(function () use ($cart, $user) {
    // create order + items, decrement stock, clear session cart
});

Run and verify

Enter 09-Cart-Checkout-And-Ownership, install PHP and Node dependencies, copy .env.example, migrate, seed, build assets, and serve on port 8004.

Open http://127.0.0.1:8004. From data lessons onward, Ada and Grace use password123.

docker compose up -d
git clone https://github.com/michaeldunga1/fcc-laravel-ecommerce.git
cd fcc-laravel-ecommerce/09-Cart-Checkout-And-Ownership
composer install
npm install
cp .env.example .env
php artisan key:generate
php artisan migrate --seed
php artisan storage:link
npm run build
php artisan serve --host=0.0.0.0 --port=8004

Troubleshooting

UI hiding is not authorization—POST as Grace against Ada's product must 403.

For database failures, confirm Docker and the quaycart_NN name. Never commit .env, vendor, or node_modules.

• Read the first exception first
• Rebuild assets after Tailwind class changes
• Never commit secrets

Try this

Complete a checkout as Ada, then attempt to delete Grace's product and confirm 403.

Test a happy path and one invalid or unauthorized request.

• Make one small change
• Test it in the browser
• Compare with the next snapshot only after it works