Custom Authorization Policies in ASP.NET Core

Securing web applications requires more than just basic login checks. Often, you need to restrict actions like updating or deleting a resource to the specific user who created it, ensuring robust data protection. In this text-only course, you will learn how to design and implement custom authorization policies in ASP.NET Core. You will progress from understanding core identity concepts to writing robust, resource-based authorization handlers that protect your endpoints from unauthorized access. What you'll learn: - Understand the foundational concepts of authentication, claims, and authorization in ASP.NET Core. - Design custom authorization requirements and handlers to implement fine-grained access control. - Implement resource-based authorization to restrict actions to resource creators or specific roles. - Configure and register authorization policies within the application dependency injection container. - Apply modern security best practices, including securing minimal APIs and handling authorization failures gracefully. - Practice writing clean, testable authorization logic through structured text-based exercises. You will start by exploring essential security terminology and the ASP.NET Core authorization architecture. Next, you will walk through the step-by-step process of building custom requirements, writing policy handlers, and applying them directly to your application endpoints. This course is designed for developers who have a basic understanding of C# and ASP.NET Core and want to implement secure, production-ready authorization patterns. No advanced security background is required. Start reading today to build secure ASP.NET Core applications with robust, custom access controls.