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congiuluc
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authentication

Implement JWT authentication and RBAC for .NET Minimal API endpoints.

Updated Mar 28, 2026
Search Tags:#authorization#jwt#rbac#dotnet#policies#claims#authenticate
One-click install
npx skills add https://github.com/congiuluc/my-awesome-copilot --skill authentication-congiuluc
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: authentication
Source: https://github.com/congiuluc/my-awesome-copilot/tree/main/skills/authentication
Command: npx skills add https://github.com/congiuluc/my-awesome-copilot --skill authentication-congiuluc

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Securely authenticates users and controls access in .NET Minimal APIs via JWT-based authentication, claims-based authorization, policy-driven RBAC, and server-side row-level access checks, reducing security gaps and boilerplate.

Core Features & Use Cases

  • JWT configuration and token validation at the API boundary.
  • Centralized authorization policies (roles, claims) with reusable handlers.
  • Row-level access control to enforce ownership or shared access.
  • Endpoint protection using RequireAuthorization and policy enforcement.
  • Claims extraction utilities to keep services clean and secure.

Quick Start

Configure JWT authentication, policy-based authorization, and apply authorization on endpoints to enforce access control.

Frequently Asked Questions about authentication

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

FAQPage Schema
How do I implement JWT authentication and authorization in a .NET Minimal API?▼

To implement JWT authentication and authorization in a .NET Minimal API, you configure JWT token validation at the API boundary, establish centralized authorization policies using claims and roles, and apply RequireAuthorization on endpoints to enforce access control.

How does policy-based RBAC work for securing .NET API endpoints?▼

Policy-based RBAC secures .NET API endpoints by defining centralized authorization policies that evaluate user roles and claims through reusable handlers, enforcing specific access requirements before an endpoint processes a request.

Can I enforce row-level access control using claims in a .NET Minimal API?▼

Yes, you can enforce row-level access control in a .NET Minimal API by utilizing claims extraction utilities to perform server-side checks, verifying resource ownership or shared access before returning data.

What is the best way to validate JWTs and extract user claims in .NET?▼

The best way to validate JWTs and extract user claims in .NET is by configuring token validation parameters at the API boundary and using dedicated claims extraction utilities to keep services clean and secure.

Does this approach require centralized authorization handlers for .NET APIs?▼

Yes, this approach requires centralized authorization handlers for .NET APIs to evaluate policies, roles, and claims consistently, which reduces boilerplate and ensures reusable policy-driven RBAC enforcement across protected resources.

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