---
title: "Comment by Tonio Tsukada on \"Step-by-Step Approach to Use Onion Architecture in .NET\" | Hashnode"
description: "Great walkthrough! You mentioned the core principles at the start—how do you typically decide what logic belongs in the Application Services layer versus the Do"
url: "https://hashnode.com/posts/step-by-step-approach-to-use-onion-architecture-in-net/67e98fe33beb1a0497ba6e38/comment/69e9d2beb0ee992902ffd9f3"
---

[Discussion](https://hashnode.com/posts/step-by-step-approach-to-use-onion-architecture-in-net/67e98fe33beb1a0497ba6e38)

Comment [Step-by-Step Approach to Use Onion Architecture in .NET](https://hashnode.com/posts/step-by-step-approach-to-use-onion-architecture-in-net/67e98fe33beb1a0497ba6e38)

[Tonio Tsukada](https://hashnode.com/@toniotsukada)

[Apr 23](https://hashnode.com/posts/step-by-step-approach-to-use-onion-architecture-in-net/67e98fe33beb1a0497ba6e38/comment/69e9d2beb0ee992902ffd9f3)

Great walkthrough! You mentioned the core principles at the start—how do you typically decide what logic belongs in the Application Services layer versus the Domain Services layer when the line feels blurry in a complex use case?