Task Management Using Clean Architecture AND CQRS

Event-driven task management system built using .NET 9, and Postgress, following clean architecture principles

What's included ?

• SharedKernel project with common Domain-Driven Design abstractions.

• Domain layer with sample entities.

• Application layer with abstractions for:

  • CQRS
  • Example use cases
  • Cross-cutting concerns (logging, validation)

• Infrastructure layer with:

  • Authentication
  • Permission authorization
  • EF Core, PostgreSQL
  • Serilog

• Seq for searching and analyzing structured logs

  • Seq is available at http://localhost:8081 by default

• Testing projects

  • Architecture testing

• API: Exposes REST endpoints to interact with tasks (Create, Update, Complete).

• Application: Contains CQRS command/query handlers and business logic.

• Domain: Defines aggregates, entities, and encapsulates domain logic.

• Infrastructure: Handles SQL persistence, and external dependencies

• Domain-Driven Design

• Role-based authorization

• Permission-based authorization

• Distributed caching with Redis

• OpenTelemetry

• Outbox pattern

• API Versioning

• Unit testing

• Functional testing

• Integration testing

⚙️ Tech Stack

• Layer Tool / Library
• Framework .NET 9
• Messaging Apache Kafka via Docker
• Persistence Entity Framework Core + SQL Server
• Mediation MediatR
• Resilience Polly
• Observability K6, InfluxDB, Grafana
• DevOps Docker, Docker Compose