bitloops/ddd-hexagonal-cqrs-es-eda resource

Health v2 · maintenance only

Adoption not part of the score

1437 stars · 123 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A complete working example application demonstrating Domain Driven Design, Hexagonal Architecture, CQRS, Event Sourcing, Event Driven Architecture, and BDD using TypeScript and NestJS. It serves as a reference implementation for learning advanced backend software architecture patterns with a production-like codebase.

Use cases

• learn domain driven design with a real codebase
• example of CQRS and event sourcing in TypeScript
• hexagonal architecture reference implementation
• how to structure a NestJS backend with DDD
• event driven architecture example with NATS
• behavior driven development example in Node.js
• production-ready backend architecture template
• learn event storming and software design patterns

When to choose

• you want a comprehensive, working reference for DDD, CQRS, and event sourcing in TypeScript
• you are learning advanced backend architecture patterns with NestJS
• you need a realistic example of event-driven microservices with monitoring and tracing

When to avoid

• you need a lightweight starter template rather than a full architectural example
• your stack is not Node.js/TypeScript or you do not use NestJS
• you want a production framework or library to install rather than educational example code

Facets

learning-resource · maturity active

web-framework api-framework message-queue orm testing monitoring auth logging backend web-development developer-tools tutorials apis microservices cross-platform ddd hexagonal-architecture cqrs event-sourcing event-driven-architecture bdd nestjs reference-implementation todo-app keycloak mongodb postgres nats jaeger prometheus nodejs typescript docker

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