Event Serialization

@Event('account-opened')
export class AccountOpenedEvent implements IEvent {
  constructor(
    public readonly accountId: AccountId,
    public readonly openedOn: Date,
    public readonly accountOwnerIds?: AccountOwnerId[]
  ) {}
}
 
@EventSerializer(AccountOpenedEvent)
export class AccountOpenedEventSerializer implements IEventSerializer {
  serialize({ accountId, openedOn, accountOwnerIds }: AccountOpenedEvent): IEventPayload<AccountOpenedEvent> {
    return {
      accountId: accountId.value,
      openedOn: openedOn.toISOString(),
      accountOwnerIds: accountOwnerIds?.map((id) => id.value)
    };
  }
 
  deserialize({ id, openedOn, accountOwnerIds }: IEventPayload<AccountOpenedEvent>): AccountOpenedEvent {
    const accountId = AccountId.from(id);
    const openedOnDate = openedOn && new Date(openedOn);
    const ownerIds = accountOwnerIds?.map((id) => AccountOwnerId.from(id));
 
    return new AccountOpenedEvent(accountId, openedOnDate, ownerIds);
  }
}