ASP.NET Core Web API

Implement modern ASP.NET Core patterns for building RESTful APIs.

Updated Jan 22, 2026
One-click install
npx skills add https://github.com/ngxtm/skill-rule --skill asp-net-core-web-api
Or copy as Structured Prompt for Agent
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Skill: ASP.NET Core Web API
Source: https://github.com/ngxtm/skill-rule/tree/main/rules/dotnet/aspnet-core
Command: npx skills add https://github.com/ngxtm/skill-rule --skill asp-net-core-web-api

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides best practices and patterns for building robust, scalable, and maintainable RESTful APIs using ASP.NET Core.

Core Features & Use Cases

  • Modern API Patterns: Implements Minimal APIs and Controllers with best practices.
  • Validation & Error Handling: Integrates FluentValidation and global exception handling.
  • Use Case: Develop a high-performance backend for a web or mobile application, ensuring consistent API design and reliable error responses.

Quick Start

Implement modern ASP.NET Core patterns for building RESTful APIs using the provided code examples and guidelines.

Frequently Asked Questions about ASP.NET Core Web API

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

FAQPage Schema
How do I build a RESTful API using ASP.NET Core Minimal APIs?

You can build a RESTful API using ASP.NET Core Minimal APIs by implementing lightweight endpoint routing alongside middleware for request handling. This approach utilizes C# and .NET Core best practices to create scalable web services without requiring controller classes.

What is the best way to handle validation and global errors in a dotnet webapi?

The best way to handle validation and global errors in a dotnet webapi is integrating FluentValidation with global exception handling middleware. This ensures consistent API design and reliable error responses across your ASP.NET Core application.

Does ASP.NET Core support both Controllers and Minimal APIs for API development?

Yes, ASP.NET Core supports both Controllers and Minimal APIs for modern API development. You can implement either pattern using best practices to address efficient request handling and robust error management in your RESTful web services.

How do I add versioning to an ASP.NET Core Web API?

You can add versioning to an ASP.NET Core Web API by implementing built-in versioning patterns alongside controllers and middleware. This allows you to maintain scalable and maintainable RESTful services while evolving your API endpoints.

Can I use FluentValidation with Minimal APIs in .NET Core?

Yes, you can use FluentValidation with Minimal APIs in .NET Core. Integrating it with your middleware pipeline allows you to enforce robust validation rules and manage errors efficiently when building modern RESTful APIs.