March 2025
Intermediate to advanced
202 pages
4h 45m
English
Every event represents something that actually happened. An event cannot be modified and always refers to something that took place. Modeling the absence of a thing or a thing that didn’t actually occur may often seem like a good idea, but doing so can confuse both developers and event processors. Remember that if an error didn’t result in some immutable thing happening, it shouldn’t be modeled as an event.
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