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Improving Microservices Architecture with Vertical Slice Architecture

CleanArchitecture
DDD
EDA
C#
VSA
Backend

Explore how Vertical Slice Architecture, combined with Domain-Driven Design and Event-Driven Architecture, enhances the scalability and maintainability of microservices in a hotel reservation system.

Vertical Slice Architecute graphic

Recently, I have been working on modifying a Vertical Slice Architecture template to enhance the maintainability and scalability of microservices. This project aims to design an architecture based on Azure ☁️ for reservation management, using Event-Driven Architecture 🔄 to efficiently handle events and ensure asynchronous communication between services.

This architecture will serve as the foundation upon which I will build the system.

Key Tools and Approaches

To achieve this goal, I have incorporated a combination of architectures and tools that have been fundamental in the process:

1. Domain-Driven Design (DDD) 🏗️

I restructured the application organization to clearly define domain boundaries and avoid unnecessary dependencies between modules. This has enabled greater clarity and modularity in the design.

2. Screaming Architecture 📢

By prioritizing the expressiveness of the code structure, the folder and namespace organization now directly reflects the business domain instead of being coupled to technical details.

3. .NET Aspire 🚀

I integrated Aspire for service orchestration, simplifying dependency management, configuration, and local deployment of microservices.

4. Event-Driven Architecture ⚡

I implemented an event-driven approach to improve scalability and decouple services, enabling better management of distributed transactions.

5. Migration Service 🗄️

I added a specific service to manage database schema evolution, ensuring migrations are applied automatically and in a controlled manner.

Benefits Achieved

This combination of approaches and tools has enabled:

  • Greater modularity and clarity in service development.

  • Improved long-term maintainability.

  • Simplified integration and deployment of services in both local and cloud environments, thanks to Aspire.

Next Steps

I will continue sharing progress and the challenges I encounter throughout the development of this system.

💬 What other strategies do you use to improve the architecture and maintenance of your microservices?

📌 You can follow the project’s development in my GitHub repository: GitHub repository


Thank you for reading! I hope this experience can serve as inspiration for your own projects!