Access to the event store transaction and events

[peterschutt]

Would you consider some sort of hook that gives access to the transaction used by the event store repository and the events.

I'd like to be able to write events to an outbox atomic with persistence of the events themselves.

Perhaps something like

fn configure_repo(pool: Pool<Postgres>) -> PostgresEventRepository {
    let store = PostgresEventRepository::new(pool);
    store.with_transaction_hooks(...)
}

[davegarred]

Is this for adding functionality that might be needed before the event commit? Seems like this might be useful in a number of scenarios.

[peterschutt]

Yes, to be able to make the event commit contingent on some other thing. For example, writing events to an outbox or keeping some view updated synchronous with the events themselves.