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A comment on Event Sourcing, CQRS and Micro Services: Real FinTech Example. Parent comment

Re:Event Sourcing, CQRS and Micro Services: Real FinTech Exa... by mirekrusin on Saturday October 18, 2025 @04:15PM (#45630070)
What if your correction renders subsequent events nonsensical?
[ Parent | on HN ]
Re:Event Sourcing, CQRS and Micro Services: Real FinTech Exa... by mrkeen on Sunday October 19, 2025 @05:32AM (#45633036)
There is a very real chance of this happening, and two choices.

One - bake whatever happens into your system permanently, like 99% of all apps, and disallow corrections.

Two - keep the events around so that you can check and re-check your corrections before you check in new code or data.

[ Parent | on HN ]