Introduction
to Event Sourcing
with Commanded
Lisbon |> Elixir Dec 2018
Bruno Antunes
Onfido
https://www.enxoo.com/polish/blog-feed/2016/11/18/irosebg91h8lrbo7ot4adb9a8lm38v
https://docs.microsoft.com/en-us/aspnet/core/tutorials/first-web-api-mac?view=aspnetcore-2.1
CRUD works
https://www.channelfutures.com/industry-perspectives/marketing-managed-services-referrals
http://digital.vpr.net/post/awesome-etiquette-how-answer-questions-about-your-career-or-lack-one#stream/0
https://en.wikipedia.org/wiki/Ledger
Advantages
of Event Sourcing
https://www.marketingweek.com/2016/04/07/exploring-marketings-new-relationship-with-insight/
https://h22208.www2.hpe.com/eginfolib/networking/docs/sdn/sdnc2_6/5998-8472admin/content/s_sdnc-auditlog-screen-sdn.html
https://www.claruswms.co.uk/happy-workers-efficient-warehouse/
https://www.anasoft.com/emans/en/home/news-blog/blog/What-to-Do-with-an-Overstocked-Warehouse-%E2%80%93-Can-a-Warehouse
Cons of ES
https://blueocean.ca/weighing-the-pros-and-cons-of-cross-trained-contact-center-agents/
CQRS
Event Store
Read Model
https://kalele.io/blog-posts/really-simple-cqrs
Let's see some code
https://github.com/commanded/commanded
https://gitter.im/commanded/Lobby
https://github.com/commanded/eventstore
Commands
Commands
Commands
Aggregates
Aggregates
Aggregates
Events
Events
| event_id | event_type | causation_id | correlation_id | data | metadata | created_at |
|---|---|---|---|---|---|---|
| <UUID> | Events.Task.Created | <UUID> | <UUID> | %{...} | %{...} | <timestamp> |
| <UUID> | Events.Task.Assigned | <UUID> | <UUID> | %{...} | %{...} | <timestamp> |
Event Store
Event Store
Event Store
Projections
Projections
Projections
Projections
Read Model
Queries
Pitfalls
Snapshotting
https://www.slideshare.net/michieltcs/cqrs-event-sourcing-in-the-wild
Snapshotting
Useful references
https://martinfowler.com/eaaDev/EventSourcing.html
Greg Young
http://udidahan.com/2009/12/09/clarified-cqrs/
https://gitter.im/commanded/Lobby
https://kalele.io/blog-posts/really-simple-cqrs