JWT Authentication and Role-Based Authorization with .NET 9 and Scalar in Visual Studio 2022

Bikash Khanal | May 2, 2025

Securing APIs is a critical aspect of modern web development. Implementing JWT (JSON Web Token) authentication combined with role-based authorization ensures that only authenticated users with appropriate permissions can access specific resources. This guide provides a step-by-step approach to setting up JWT authentication and role-based authorization in a .NET 9 Web API using Visual Studio 2022, with Scalar for API documentation.​