secure JWT Authentication with Refresh Token flow using ASP.NET Core Minimal API. Includes access token expiry handling, refresh token rotation, in-memory token store, middleware-based auth, and clean end-to-end API security implementation—ideal for learning modern backend authentication.
authentication dotnet aspnetcore authorization jwt-authentication api-security refresh-flow security-best-practices token-rotation
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Updated
Dec 2, 2025 - C#