What is Vertical Slice Architecture?
Vertical Slice Architecture organizes code by feature instead of by layer. Each feature (or "slice") contains everything it needs - the request, the handler, the validation, and the data access - in one place.
Instead of scattering a single feature across Controllers, Services, and Repositories, you keep it together. This makes each slice self-contained, easier to understand, and simpler to change without affecting unrelated features.
The result is a codebase where adding a new feature means adding a new slice, not modifying five different layers.
Getting Started
These articles introduce the core ideas behind Vertical Slice Architecture, explain when it makes sense, and show you how to get started.
- Vertical Slice Architecture
- Vertical Slice Architecture Is Easier Than You Think
- Screaming Architecture
Structuring Your Slices
Once you understand the basics, you'll need patterns for organizing slices as your project grows. These articles cover structure, shared logic, and CQRS integration.
- Vertical Slice Architecture: Structuring Vertical Slices
- Vertical Slice Architecture: Where Does the Shared Logic Live?
- CQRS Pattern: The Way It Should Have Been From the Start
Combining with Other Architectures
Vertical slices don't exist in isolation. They work well inside Modular Monoliths and alongside Clean Architecture. These articles explore the combinations.
- Where Vertical Slices Fit Inside the Modular Monolith Architecture
- What Is a Modular Monolith?
- Clean Architecture: The Missing Chapter
Testing and Quality
Vertical slices are inherently testable - each slice is a focused unit with clear inputs and outputs.
