nestjs-modular-monolith

NestJS modular monoliths enforce strict isolation between bounded contexts using DDD and Clean Architecture patterns. You should use this approach when you need a maintainable backend system that can scale and eventually evolve into microservices.

Structure your NestJS monorepo by defining bounded contexts as separate modules, enforcing state isolation, and applying CQRS patterns. Use an NX workspace to manage the module boundaries and configure event-driven communication between them.

Yes, the modular monolith approach supports eventual migration to microservices. By enforcing strict module boundaries and state isolation from the start, you can extract individual bounded contexts into separate microservices with minimal architectural changes.

Yes, NX monorepo tools are fully supported for building NestJS modular monoliths. The framework provides specific stack recommendations and configurations for setting up NX workspaces to manage your bounded contexts and module structures.

Enforce module boundaries in a NestJS modular monolith by applying DDD principles, isolating state between bounded contexts, and using event-driven communication. This prevents direct database access across modules and maintains strict separation.

The best way to handle event-driven communication in NestJS modular monoliths is by implementing CQRS patterns within a Clean Architecture design. This allows bounded contexts to interact asynchronously while maintaining strict state isolation.