transaction_manager.md

Transaction Handling

The transaction manager starts a new event store transaction on every command dispatch and commits it afterwards.

Set Up

To enable transaction handling based on command dispatch you need to set up the Prooph\EventStoreBusBridge\TransactionManager. The transaction manager acts as command bus plugin:

/** @var $eventStore Prooph\EventStore\EventStore */
$transactionManager = new TransactionManager($eventStore);

/** @var $commandBus Prooph\ServiceBus\CommandBus */
$transactionManager->attachToMessageBus($commandBus);

That's it!

Container-Driven Set Up

If you are using the container-aware factories shipped with prooph/service-bus you may also want to auto register the TransactionManager. As long as the command bus is available as service Prooph\ServiceBus\CommandBus in the container you can use the Prooph\EventStoreBusBridge\Container\TransactionManagerFactory for that. Just map the factory to a service name like prooph.transaction_manager and add the service name to the plugin list of the event store configuration. Also have a look at the event store docs for more details about the plugin system.