Event sourcing resources

event_sourcing_resources.md

For overall terminology for event-driven, even-sourcing, CQRS, etc. to help disambiguate by Martin Fowler:

• https://www.youtube.com/watch?v=STKCRSUsyP0 video OR https://martinfowler.com/articles/201701-event-driven.html article

At least a couple of videos by Greg Evans. He's given the same basic talks multiple times, so no need to watch every single variation, but here are a few distinct ones:

• Event sourcing and CQRS: https://www.youtube.com/watch?v=JHGkaShoyNs
• Polyglot Data, Accidental complexity, i.e. "read models": https://www.youtube.com/watch?v=hv2dKtPq0ME Section starting at 24:55 has good rationale for why event sourcing is more than just having a relational DB with an event bus or stream to share data with other DBs.
• Lessons learned: https://www.youtube.com/watch?v=LDW0QWie21s

Good overview of event sourcing and a lot of the nuances that pop up. Worth a skim, at least:

• https://martinfowler.com/eaaDev/EventSourcing.html

Aggregates vs. Projections:

• https://domaincentric.net/blog/event-sourcing-aggregates-vs-projections

A contrarian view, worth a skim to get a sense for what can go wrong:

• https://chriskiehl.com/article/event-sourcing-is-hard

Loosely related, but great video related to "source" data vs. "derived" data:

• https://www.youtube.com/watch?v=fU9hR3kiOK0