Command Handlers

Once you create a Command, you need to create a Command Handler to handle that command. Command Handlers do NOT return any results.

<?php

use SonsOfPHP\Component\Cqrs\Command\CommandMessageHandlerInterface;

final class ExampleCommandHandler implements CommandMessageHandlerInterface
{
}

Getting the Command to the Command Handler

Attention

The CommandMessageBus reqires the sonsofphp/cqrs-symfony package.

You can use Messenger to process commands. If you're using Messenger as a standalone component, inject your MessageBus object into the CommandMessageBus.

<?php

use SonsOfPHP\Bridge\Symfony\Cqrs\CommandMessageBus;

$commandBus = new CommandMessageBus($messageBus);

If using the Symfony Framework, it's even easier. You'll just need to update your services.yaml file.

SonsOfPHP\Bridge\Symfony\Cqrs\CommandMessageBus:
    arguments: ['@command.bus']

Note

You will need to configure Messenger to have multiple buses. command.bus is the name of the bus that was configured to process commands.

Using the CommandMessageBus is easy as well.

<?php

// Once you create a Command, it can just be dispatched.
$commandBus->dispatch($command);

// If you need to apply one or more stamps, this must be done
// before the command is dispatched.
$commandBus
    ->withStamps([$stamp])
    ->dispatch($command);