.NET 7 Web API πŸ”’ JWT Authentication and Role-Based Authorization

R M Shahidul Islam Shahed
5 min readMar 28, 2023

In the dynamic landscape of web development, crafting secure and efficient APIs is paramount. As technology evolves, so do the tools and frameworks available to developers. One such powerful and widely adopted framework is .NET, and with the release of .NET 7, developers are equipped with even more capabilities to create robust web applications. This introduction delves into the realm of web security, specifically focusing on the integration of JSON Web Token (JWT) authentication and role-based authorization within the .NET 7 Web API framework.

Security is a cornerstone in the realm of web development, especially when dealing with APIs that handle sensitive data or facilitate critical operations. JWT authentication stands as a stalwart solution, providing a secure and efficient means of validating the identity of clients interacting with an API. Coupled with role-based authorization, developers can fine-tune access control, ensuring that users and systems are granted permissions based on predefined roles, adding a layer of security to the application.

In this exploration of .NET 7 Web API πŸ”’ JWT Authentication and Role-Based Authorization, we will unravel the intricacies of implementing and configuring JWT authentication, understanding its inner workings, and seamlessly integrating it into the API. Furthermore, we will delve into the realm of role-based authorization, exploring how to enforce access policies based on user roles, thereby fortifying the application against unauthorized access and potential security threats.

JWT (JSON Web Token) authentication is a popular method of implementing authentication and authorization in modern web applications. In ASP.NET Core, JWT authentication is built into the framework and can be easily configured in your application.

After completing this guide you will have created an ASP.NET 7 web API that exposes a secure endpoint. The secure endpoint can only be accessed by users who have a registered account in your system.

Here is a step-by-step guide to user authentication using ASP.NET Core 7, Identity, and MSSQL Create a minimal API project in Visual Studio 2022.