Clean Architecture in .NET: The Complete Guide
About Course
Clean Architecture in .NET: The Complete Guide
Understand the reasoning. Enforce the rules. Build software that survives change.
Course Summary
This course teaches Clean Architecture as a set of decisions you can defend, and break on purpose when the situation calls for it. You take one real Event Ticketing application from a working but terrible starting point to a clean, fully tested solution, in .NET 10 and C# 14.
Every layer and abstraction arrives only when a concrete pain demands it, and each one faces the same question: did it earn its place?
What Will You Learn?
- Enforce the Dependency Rule with the compiler and CI
- Build a rich domain with aggregates, value objects and domain events
- Write use cases with CQRS, a hand-rolled mediator and a behavior pipeline
- Put EF Core behind boundaries that earn their place
- Handle errors with the Result pattern and ProblemDetails
- Test every layer, up to integration tests with Testcontainers
- Decide where any piece of code belongs, and when Vertical Slice wins
- Spot the anti-patterns that pass review and rot later
Course Description
You build the core machinery yourself, so nothing in the finished system is a black box. Every module ends with a runnable checkpoint, exercises with worked solutions and a quiz.
It is for developers stepping up to senior-level architecture, preparing for a senior interview, or bringing order to a codebase that has become painful to change.
You can find an entire TOC with preview lessons in the Course Content section below.
Course Content
Course Overview
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The architecture landscape in one map
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How to use this course
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The Source Code & Tools
Module 1 — Feel the Pain: The All-In-One API
Module 2 — The One Rule That Matters: The Dependency Rule
Module 3 — The Domain Layer: Where the Business Lives
Module 4 — The Application Layer: Use Cases, Not a Junk Drawer
Module 5 — Cross-Cutting Concerns as a Pipeline
Module 6 — Infrastructure: EF Core Behind a Boundary
Module 7 — The Boundary in and Out: DTOs and the API Edge
Module 8 — Errors: Exceptions vs the Result Pattern
Module 9 — Domain Events and Side Effects
Module 10 — The Payoff: Testing a Clean Architecture App
Module 11 — Putting It Together: One Feature, End to End
Module 12 — Where Does This Code Go?
Module 13 — The Honest Counterpoint: Vertical Slice
Module 14 — Anti-Patterns: Clean Architecture Making Code Worse
Module 15 — Wrap-up & Resources
Student Ratings & Reviews
Not everyone is working with newest .NET 10. Many must work with older versions. And others can't switch to .NET from .NET Framework currently. Would be nice to have solutions for the latest .NET Framework (= 4.8).
it is a good step-by-step tutorial on Clean Architecture
Mi piace soprattutto il modo in cui sono spiegate le cose. Senza essere eccessivamente teoriche e riuscendo ad essere pratiche e calate nella realtà dei problemi di chi sviluppa.
Great course. It explains CQRS and DDD clearly and concisely, but it’s not something to rush — one or two modules per evening worked perfectly for me. I had an early issue with exercise answers, but Vladimir was helpful and is addressing it. The final quiz is challenging, and the extra materials (especially the cards) are genuinely useful. Ready to put it all into practice now.