Learn Event-Driven Architecture
Events describe past facts. Consumers react independently under explicit delivery contracts.
Read each short explanation, work through the example, then answer a pop quiz. Every answer explains the reasoning. Incorrect answers unlock a fresh question on the same idea; the full lesson contains ten questions.
01Understand the basics
Ready to learnAn event records something that has already happened. A command asks another component to do something. Event-driven systems allow independent consumers to react, but they must agree on event meaning, delivery behaviour and versioning.
02Expect delay
Ready to learnIndependent consumers do not necessarily finish together. Eventual consistency means different views can temporarily disagree while updates are processed. Design user interfaces and support tools around that delay.
Try a different value
03Publish reliably
Ready to learnA database update and event publication are separate operations unless you deliberately coordinate them. An outbox stores the event alongside the business change so a publisher can send it later.
You’ve practised all three sections.
First-attempt understanding and later practice are shown separately. Keep practising with the related tools or continue through the suggested path.
Put it to work
Apply what you’ve learned using the related tools.