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Event sourcing from wtf to why to wow

Slides from the Dublin Microservices meetup - 2017-04-24

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Event sourcing from wtf to why to wow

  1. 1. EVENT SOURCING FROM WTF TO WHY TO WOW Duncan Jones 💬 @Merrion Now with added CQRS and microservices
  2. 2. AGENDA What Why How
  3. 3. NOTES
  4. 4. DEFINITION OF EVENT SOURCING
  5. 5. MODELLING USING EVENTS
  6. 6. COMPARISON TO RDBMS Performanc e ? Scalability? Business Fit ? Tooling ? Ease of use ? Developer Experience ?
  7. 7. USE WITH CQRS Query Command Projection Event Streams Cache
  8. 8. USE WITH DDD/MICROSERVICES Event Store Projection Identity Group Cache Bounded context (Domain) Command Query
  9. 9. NEXT STEPS Experiment https://geteventstore.com/ CQRS Designer (.NET)
  10. 10. FUNKY FOLLOW UPS Query Command Cache Passive “Observer” Active Query

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