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ElixirOttawaMeetup / MeetUpIdeas

Idea tracker for the Meetup
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Any interest in event sourcing? #13

Closed drozzy closed 7 years ago

drozzy commented 7 years ago

Could show the use of Elixir's Extreme library, which integrates with EventStore (https://geteventstore.com): https://github.com/exponentially/extreme

But this is a bit of a narrow field of interest topic. In fact, I'm waiting for a place to host a DDD/CQRS meetup (might not find it) - but in the meantime I could talk about some topics here.

maxneuvians commented 7 years ago

This is pretty awesome - we have talked about CQRS in the past at the meetup and it would be great to have a talk on it, all you need to tell me is when you would like to do it.

drozzy commented 7 years ago

I can do it anytime after Aug 17th 2017 or so.

I can talk either about EventSourcing or CQRS. Talking about both at once would take too much time. The CQRS is the drier of the two. EventSourcing is less practical on it's own, but (imo) more interesting.

I am happy to do either, depending on what people want to know more about. For those interested, there is an excellent slack group: https://ddd-cqrs-es.herokuapp.com/

uri commented 7 years ago

I'm also very interested in event sourcing and CQRS you mentioned the popular EventStore lib but there's also Commanded.

Here's a great article on the topic if you want some ideas of how it's framed in Elixir https://10consulting.com/2017/01/04/building-a-cqrs-web-application-in-elixir-using-phoenix/

drozzy commented 7 years ago

Commanded sure solves a lot of problems. I've looked at it briefly but decided to defer learning it until it is a bit more mature (as it does, essentially, make you buy into another framework).

It looks good after you program the command handlers yourself and then have to do the clunky serialization/deserialization and pushing events to event store on every node of your system. So I might use it in the future.

drozzy commented 7 years ago

Tried commanded. Works brilliantly (for aggregate roots, at least - haven't tried to implement pm or projections yet).

maxneuvians commented 7 years ago

Hi @drozzy, Would you like to present this at the Meetup on the 25th of September?

drozzy commented 7 years ago

Sure.

maxneuvians commented 7 years ago

Awesome! Thank you @drozzy

maxneuvians commented 7 years ago

Scheduled for Sept. 25th

drozzy commented 7 years ago

Ok!