System Design Examples

Use Cases

Firstly, it's essential to understand that the CQRS pattern isn't the right choice for every system. It is important to recognize where CQRS fits and where it is more than you need.

High-Performance Applications

One of the compelling use cases of CQRS is in high-performance applications where the number of reads significantly outweighs the number of writes. Imagine an e-commerce platform where millions of users browse products (queries) while far fewer orders (commands) are placed. Optimizing the system for that read volume is worth the extra work.