PHP code example of bowphp / cqrs

1. Go to this page and download the library: Download bowphp/cqrs library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

bowphp / cqrs example snippets


use Bow\CQRS\Command\CommandInterface;

class CreateUserCommand implements CommandInterface
{
    public function __construct(
        public string $username,
        public string $email
    ) {}
}


use Bow\CQRS\Command\CommandHandlerInterface;

class CreateUserCommandHandler implements CommandHandlerInterface
{
    public function __construct(public UserService $userService) {}

    public function process(CommandInterface $command): mixed
    {
        if ($this->userService->exists($command->email)) {
            throw new UserServiceException(
                "The user already exists"
            );
        }

        return $this->userService->create([
            "username" => $command->username,
            "email" => $command->email
        ]);
    }
}


use Bow\CQRS\Registration as CQRSRegistration;

public function run()
{
    CQRSRegistration::commands([
        CreateUserCommand::class => CreateUserCommandHandler::class
    ]);
}


namespace App\Controllers;

use App\Controllers\Controller;
use App\Commands\CreateUserCommand;

class UserController extends Controller
{
    public function __construct(private CommandBus $commandBus) {}

    public function __invoke(Request $request)
    {
        $payload = $request->only(['username', 'email']);
        $command = new CreateUserCommand(
            $payload['username'],
            $payload['email']
        );

        $result = $this->commandBus->execute($command);

        return redirect()
            ->back()
            ->withFlash("message", "User created");
    }
}


$app->post("/users/create", UserController::class);