csharp-patterns

Generate ASP.NET Core web API patterns with controllers, DI, and middleware.

Updated Aug 27, 2026

Search Tags:#api design #backend development #dependency injection #c##architecture patterns #asp.net core

Ready to run

npx skills add https://github.com/digitalhand/claude-skills-agents --skill csharp-patterns-digitalhand

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Please help me install this Agent Skill.
Skill: csharp-patterns
Source: https://github.com/digitalhand/claude-skills-agents/tree/main/skills/csharp-patterns
Command: npx skills add https://github.com/digitalhand/claude-skills-agents --skill csharp-patterns-digitalhand

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides comprehensive guidance and code examples for building robust, scalable, and maintainable ASP.NET Core applications, addressing common architectural challenges.

Core Features & Use Cases

Architectural Patterns: Demonstrates best practices for controllers, minimal APIs, dependency injection, and middleware.
Data Handling: Illustrates DTOs, validation (FluentValidation), and the repository pattern with EF Core.
Cross-Cutting Concerns: Covers options pattern, caching (IMemoryCache, Output Caching), exception handling, and background services.
Use Case: When starting a new ASP.NET Core project, use this Skill to quickly implement a well-structured foundation for your API, including proper DI, configuration, and error handling.

Quick Start

Use the csharp-patterns skill to generate an example of a controller-based REST API endpoint for fetching user data.

Frequently Asked Questions about csharp-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I structure an ASP.NET Core Web API using dependency injection and middleware?▼

ASP.NET Core Web API structuring uses dependency injection for service lifetimes and middleware for request pipeline configuration. This approach creates a maintainable application foundation by properly separating cross-cutting concerns and core business logic.

What is the best way to implement validation and DTOs in an ASP.NET Core backend?▼

Implementing validation and DTOs in an ASP.NET Core backend is best achieved using Data Transfer Objects to isolate API contracts and FluentValidation to enforce data integrity rules. This pattern prevents invalid data from reaching your core domain logic.

How does the minimal API approach compare to using controllers in ASP.NET Core?▼

The minimal API approach in ASP.NET Core offers a lightweight alternative to traditional controllers, reducing boilerplate for simple endpoints. Controllers remain preferable for complex architectures requiring structured action filters and extensive dependency injection.

Can I use the repository pattern with EF Core for data handling in C#?▼

You can use the repository pattern with EF Core in C# to abstract data access operations. This implementation centralizes query logic, facilitates testability through mockable interfaces, and maintains clean separation between domain layers and database contexts.

When should I implement caching and background services in an ASP.NET Core application?▼

Implement caching using IMemoryCache or Output Caching when reducing latency for frequent read operations, and deploy background services for asynchronous tasks. These ASP.NET Core capabilities optimize performance and prevent long-running operations from blocking API requests.