Does this replace Global Exception Handling?

No. Global handlers should still catch unhandled system exceptions (like database connection failures). This pattern is specifically for 'expected' business logic errors that occur during normal application flow.

Why use the Result pattern instead of Exceptions?

Exceptions are computationally expensive and intended for truly unexpected events. The Result pattern treats business rule violations (like 'User Not Found') as expected outcomes, making code more predictable, readable, and performant.

How does this help with ASP.NET Core API responses?

It provides a structured way to unwrap results in your Controllers, allowing you to map specific business error codes to the correct HTTP status codes (like 400 BadRequest or 409 Conflict) using clean switch expressions.

Is this compatible with Clean Architecture?

Yes, it is a core pattern in Clean Architecture and DDD, as it allows the Domain and Application layers to communicate failures to the Infrastructure/API layer without depending on web-specific logic.

C# Result Pattern for ASP.NET Core

Name: C# Result Pattern for ASP.NET Core
Author: andychang0121

byandychang0121

0•

API開発

Implements the Result<T> pattern to handle business logic errors gracefully in ASP.NET Core without relying on performance-heavy exceptions.

This skill provides a standardized implementation of the Result pattern for .NET applications, enabling developers to differentiate between expected business rule violations and unexpected system failures. By replacing flow-control exceptions with a structured Result type, it improves code readability, performance, and API consistency. The skill includes factory methods for success and failure states, patterns for clean Controller-level response mapping via switch expressions, and clear architectural guidance on maintaining a clean separation between domain logic and infrastructure concerns.

主な機能

01Improved application performance by avoiding stack trace generation for expected logic errors.

02Standardized Result<T> and Error type definitions for Domain-Driven Design.

03Lightweight, immutable record-based error reporting for better state management.

04Explicit separation of business logic errors from system-level exceptions.

050 GitHub stars

06Pattern for mapping business results to appropriate HTTP status codes in Controllers.

ユースケース

01Standardizing API error responses across multiple microservices using a unified error structure.

02Handling validation or domain rule violations in the Service layer without throwing exceptions.

03Refactoring legacy .NET codebases to move away from exception-based flow control.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add andychang0121/dotnet-skills csharp-result-pattern

For use in Claude.ai and ChatGPT

主な機能

01Improved application performance by avoiding stack trace generation for expected logic errors.

02Standardized Result<T> and Error type definitions for Domain-Driven Design.

03Lightweight, immutable record-based error reporting for better state management.

04Explicit separation of business logic errors from system-level exceptions.

050 GitHub stars

06Pattern for mapping business results to appropriate HTTP status codes in Controllers.

ユースケース

01Standardizing API error responses across multiple microservices using a unified error structure.

02Handling validation or domain rule violations in the Service layer without throwing exceptions.

03Refactoring legacy .NET codebases to move away from exception-based flow control.