Building NestJS Applications Following the CQRS Model

A comprehensive guide to implementing Command Query Responsibility Segregation (CQRS) pattern in NestJS applications. Covers the fundamentals of CQRS architecture, comparing it with traditional CRUD/layered approaches, and walks through building a voting application using the @nestjs/cqrs module. Explains core concepts including commands, queries, events, handlers, event buses, sagas, and the AggregateRoot pattern with practical code examples.