Laravel Exceptions

Custom exceptions with static factory methods and HTTP integration.

Core Concept

exceptions.md - Exception patterns:

• Static factory methods for creation
• HTTP status code integration
• Descriptive error messages
• HttpExceptionInterface for HTTP responses
• When to throw vs return results

Pattern

final class InsufficientInventoryException extends Exception implements HttpExceptionInterface
{
    public static function forProduct(Product $product, int $requested): self
    {
        return new self(
            "Insufficient inventory for product {$product->name}. ".
            "Requested: {$requested}, Available: {$product->stock}"
        );
    }

    public function getStatusCode(): int
    {
        return 422;
    }

    public function getHeaders(): array
    {
        return [];
    }
}

// Usage
throw InsufficientInventoryException::forProduct($product, $quantity);

Use static factories for context-rich exception creation. Implement HttpExceptionInterface for automatic HTTP responses.