seikho/evtstore

Event Sourcing and CQRS with Node.js and TypeScript

evtstore's Issues

How to pass transaction to be able to rollback a sequence of actions?

I am using the evtstore library in our app and I need a way to pass transaction in knex provider in order to rollback a sequence of actions in our application. Do you have any advice for it? After a small walkthrough in codebase it seems that I need to pass it only in the append function of the provider (where exists the only insertion in events table)

How to copy an aggregate?

I've stumbled a bit further and encountered my next problem.
How do I go about copying an aggregate? I have a Presentation and then the command is issued to copy it (with a new aggregateId).

I however haven't found a way to query for another aggregate from the command handler 🤔 So I'm unsure on how to get the extra data needed into the event.
Perhaps there is another way to accomplish what I'm after.

best regards Oskar

Edit: typescript complains that I'm referencing the presentationDomain from inside itself, which is not legal.

Does multiple instances of event handler prevent that events will be processed with correct order?

Does multiple instances of event handler ensure that events will be processed with correct order?

confusion around streams, aggregates and ids

Hi! Just found this nice little library that I'm now trying out 👍
I started out with looking and toying with your sample code and tried to modify it so that a userId is passed around as well.
I'm a bit confused on what the aggregate should be. In my mind I would like to have a stream and aggregate per user (and perhaps also a stream for all users). If I want to build an aggregate per user; do I need a new domain for each user in this case? I'm new to event sourcing, so forgive me if the question is unclear or vague.

br Oskar