# Event Sourcing Using the Event Sourcing Component allows you to manage an Event Sourced application. ## Installation ```shell composer require sonsofphp/event-sourcing ``` ### Additional Features Additional features and functionality can be enabled by installing additional packages. #### Doctrine Installing the Doctrine Bridge will allow the storage of event messages in a database. ```shell composer require sonsofphp/event-sourcing-doctrine ``` #### Symfony Installing the Symfony Bridge will add addition functionality such as allowing events to be sent asynchronously using the Messenger Component. It allows has options to generate UUID/ULID for Aggregates. ```shell composer require sonsofphp/event-sourcing-symfony ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sonsofphp.com/components/event-sourcing.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.