CQRS Concept

A clean and pragmatic ASP.NET Core 9 solution demonstrating the CQRS (Command Query Responsibility Segregation) pattern using MediatR, MongoDB, SQL Server, and a Component-Based Architecture.

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🧩 Architecture Overview

This project follows a multi-layered, component-based architecture with full separation of concerns using CQRS principles:

• Command Side:

  • Uses SQL Server for handling write operations.
  • MediatR dispatches commands to appropriate handlers.
  • Triggers events to keep the read models in sync.

• Query Side:

  • Uses MongoDB for efficient, scalable read operations.
  • Queries are handled via MediatR and mapped to read models.

• Component Layers:

  • CQRSConcept.Api – The API layer exposing HTTP endpoints, features, consumers.
  • CQRSConcept.Domain – Core domain and services (domain logic), contracts.
  • CQRSConcept.Infrastructure – Data persistence, repositories, external services.

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🗂️ Project Structure

CQRSConcept/
│
├── src/
│   ├── CQRSConcept.Api               # ASP.NET Core Web API (.NET 9)
│   ├── CQRSConcept.Domain            # Domain logic & contracts
│   └── CQRSConcept.Infrastructure    # Data access, MongoDB & SQL integration
│
└── docker-compose/                   # Docker setup (MongoDB, etc.)

💡 Getting Started

Prerequisites

• .NET 9
• Docker
• Running Mongo Instance with Docker

Setup

1. Clone the repository:

   git clone https://github.com/hvaezapp/CQRSConcept.git
   

2. Run :

   dotnet restore
   dotnet build
   dotnet run