Prooph into Laravel CommandBus was not able to identify a CommandHandler - php

Question

I have a laravel 5.7 application where I want to add prooph for event sourcing. I have follow the instructions but I retrieve this error:
Prooph\ServiceBus\Exception\RuntimeException: CommandBus was not able to identify a CommandHandler for command App\src\Prooph\Model\Procedure\Command\ChangeProcedureState in /var/www/html/vendor/prooph/service-bus/src/CommandBus.php:58
This is my config/prooph.php file
return [
'event_store' => [
'adapter' => [
'type' => \Prooph\EventStore\Pdo\MySqlEventStore::class,
'options' => [
'connection_alias' => 'laravel.connections.pdo',
],
],
'plugins' => [
\Prooph\EventStoreBusBridge\EventPublisher::class,
\Prooph\EventStoreBusBridge\TransactionManager::class,
],
'procedure_collection' => [
'repository_class' => App\src\Prooph\Infrastructure\Repository\EventStoreProcedureCollection::class,
'aggregate_type' => App\src\Prooph\Model\Procedure\Procedure::class,
],
],
'service_bus' => [
'command_bus' => [
'router' => [
'type' => \Prooph\ServiceBus\Plugin\Router\CommandRouter::class,
'routes' => [
// list of commands with corresponding command handler
\App\src\Prooph\Model\Procedure\Command\ChangeProcedureState::class => App\src\Prooph\Model\Procedure\Handler\ChangeProcedureStateHandler::class,
],
],
],
'event_bus' => [
'plugins' => [
\Prooph\ServiceBus\Plugin\InvokeStrategy\OnEventStrategy::class,
],
'router' => [
'routes' => [
// list of events with a list of projectors
],
],
],
/*'event_bus' => [
'router' => [
'routes' => [
// list of events with a list of projectors
App\src\Prooph\ProophessorDo\Model\User\Event\UserWasRegistered::class => [
\App\src\Prooph\ProophessorDo\Projection\User\UserProjector::class
],
],
],
],*/
],
];
This is my service that dispatch the command
class ProcedureRetrieveStateChanged
{
/** #var \FluentProceduresRepository $procedureRepository */
private $procedureRepository;
/**
* #var CommandBus
*/
private $commandBus;
public function __construct(\FluentProceduresRepository $procedureRepository, CommandBus $commandBus)
{
$this->procedureRepository = $procedureRepository;
$this->commandBus = $commandBus;
}
public function execute($procedureId, array $groups)
{
$procedure = $this->procedureRepository->find($procedureId);
if (null === $procedure) {
return false;
}
foreach ($groups as $group) {
$actualState = $procedure->getStatebyGroup($group['pivot']['group_id']);
if ($actualState !== $group['pivot']['state']) {
$command = new ChangeProcedureState(
[
'procedure_id' => $procedureId,
'group_id' => $group['pivot']['group_id'],
'old_state' => $actualState,
'new_state' => $group['pivot']['state'],
]
);
$this->commandBus->dispatch($command);
}
}
}
}
This is my command
final class ChangeProcedureState extends Command implements PayloadConstructable
{
use PayloadTrait;
public function procedureId(): ProcedureId
{
return ProcedureId::fromString($this->payload['procedure_id']);
}
public function state(): string
{
return $this->payload['state'];
}
protected function setPayload(array $payload): void
{
Assertion::keyExists($payload, 'procedure_id');
Assertion::keyExists($payload, 'group_id');
Assertion::keyExists($payload, 'old_state');
Assertion::keyExists($payload, 'new_state');
$this->payload = $payload;
}
}
And this is my handler
class ChangeProcedureStateHandler
{
/**
* #var ProcedureCollection
*/
private $procedureCollection;
public function __construct(ProcedureCollection $procedureCollection)
{
$this->procedureCollection = $procedureCollection;
}
public function __invoke(ChangeProcedureState $command): void
{
$procedure = $this->procedureCollection->get($command->procedureId());
$procedure->changeState($command->state());
$this->procedureCollection->save($procedure);
}
}
Can someone help me with this problem?

Answer 1

To use handlers as a string you need to use ServiceLocatorPlugin, but before that you need to register all handlers in laravel container, like $app->singletor...or $app->bind.
Cheers.