Join 150K+ monthly readers. In-depth articles on Node.js, Microservices, Kubernetes and DevOps. What is CQRS? CQRS is an architectural pattern, where the acronym stands for Command Query Responsibility Segregation. We can talk about CQRS when the data read operations are separated from the data write operations, and they happen on a different interface. In most of the CQRS systems, read and write