How would you combine Domain-Driven Design with Event-Driven Architecture to handle order processing in an e-commerce system?

hard📝 Trade-off Q9 of Q15

LLD - Advanced LLD Concepts

AUse Aggregates to enforce business rules and publish domain events asynchronously for other components

BUse Repositories to send events directly to external systems

CUse Services to store events in the database only

DUse Value Objects to trigger external API calls synchronously

Step-by-Step Solution

Solution:

Step 1: Role of Aggregates in DDD
Aggregates enforce business rules and maintain consistency.
Step 2: Integrate with Event-Driven Architecture
Aggregates publish domain events asynchronously to notify other parts of the system.
Final Answer:
Use Aggregates to enforce business rules and publish domain events asynchronously for other components -> Option A
Quick Check:
Aggregates + async domain events = correct integration [OK]

Quick Trick: Aggregates publish events; other parts react asynchronously [OK]

Common Mistakes:

MISTAKES

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