Implement Role-based Access Control for .NET applications with Amazon Cognito

This article provides a comprehensive guide to implementing Role-based Access Control (RBAC) for .NET applications using Amazon Cognito and OpenID Connect (OIDC). The tutorial demonstrates how to create secure access control systems with the following key steps:

• Create IAM roles with specific S3 bucket permissions
• Set up Cognito user groups mapped to IAM roles
• Configure .NET applications with policy-based role checks
• Implement authentication using Cognito's built-in UI
• Use JWT tokens for secure access management

The article walks through a practical example with two users, Bob (read-only access) and Sarah (read-write access), demonstrating how to restrict and grant application permissions based on user roles. The solution provides a scalable and secure approach to managing user access in .NET applications using AWS services.