--- title: Implement JWT Authentication in .NET Core | daily.dev description: A step-by-step tutorial on implementing JWT (JSON Web Token) authentication in a .NET Core application. Covers installing the... canonical: https://daily.dev/posts/implement-jwt-authentication-in-net-core-d5wowssie twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Implement JWT Authentication in .NET Core | daily.dev og:description: A step-by-step tutorial on implementing JWT (JSON Web Token) authentication in a .NET Core application. Covers installing the... og:url: https://daily.dev/posts/implement-jwt-authentication-in-net-core-d5wowssie og:image: https://api.daily.dev/og/posts/D5wowSsiE.png og:image:alt: Implement JWT Authentication in .NET Core og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Implement JWT Authentication in .NET Core **[NikolaTech](https://daily.dev/sources/nikolatech)** · 7 min read · 0 upvotes · 0 comments ## Summary A step-by-step tutorial on implementing JWT (JSON Web Token) authentication in a .NET Core application. Covers installing the Microsoft.AspNetCore.Authentication.JwtBearer NuGet package, building a JwtGenerator class with signing credentials and claims, registering authentication middleware in Program.cs, securing controller endpoints with [Authorize]/[AllowAnonymous] and Minimal API endpoints with RequireAuthorization(), and configuring Swagger to support bearer tokens. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do I set up JWT bearer authentication middleware in ASP.NET Core Program.cs? Call services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(...) and configure TokenValidationParameters with a SymmetricSecurityKey built from your secret, plus ValidIssuer and ValidAudience values. Then add app.UseAuthentication() before app.UseAuthorization() in the middleware pipeline, since authentication must run first for authorization checks to work correctly. _daily.dev surfaces practical ASP.NET Core guides like this for developers wiring up API authentication._ ### How do I require authentication only on specific Minimal API endpoints instead of the whole app? Chain the RequireAuthorization() method to an individual endpoint definition, for example app.MapDelete("products/{id:guid}", ...).RequireAuthorization(). This applies the [Authorize]-equivalent protection to just that route without affecting other Minimal API endpoints, giving granular per-endpoint control similar to the [Authorize] and [AllowAnonymous] attributes used in controller-based APIs. _Developers mixing public and protected routes in Minimal APIs can find patterns like this through daily.dev._ ## Similar posts on daily.dev - [Role-Based Authorization in ASP.NET Core](https://daily.dev/posts/role-based-authorization-in-asp-net-core-qirbihaku) · C\# Corner · 7 upvotes · 0 comments - [ASP.NET Core Security Explained: Modern Authentication, Authorization, and JWT](https://daily.dev/posts/asp-net-core-security-explained-modern-authentication-authorization-and-jwt-bgq4u3gn4) · Syncfusion · 4 upvotes · 0 comments - [JWT Session 1: Why Modern ASP.NET Core Web APIs Use JWT Instead of Sessions](https://daily.dev/posts/jwt-session-1-why-modern-asp-net-core-web-apis-use-jwt-instead-of-sessions-ibyjum8lw) · C\# Corner · 1 upvotes · 0 comments - [Claims-Based Authorization in ASP.NET Core](https://daily.dev/posts/claims-based-authorization-in-asp-net-core-mdwlbrcwo) · Code with Mukesh · 6 upvotes · 0 comments --- Tags: [#authentication](https://daily.dev/tags/authentication), [#.net](https://daily.dev/tags/.net), [#c#](https://daily.dev/tags/c#), [#aspnet](https://daily.dev/tags/aspnet), [#jwt](https://daily.dev/tags/jwt) [View this post on daily.dev](https://daily.dev/posts/implement-jwt-authentication-in-net-core-d5wowssie) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Implement JWT Authentication in .NET Core","url":"https://daily.dev/posts/implement-jwt-authentication-in-net-core-d5wowssie","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/implement-jwt-authentication-in-net-core-d5wowssie"},"datePublished":"2026-10-04T13:06:58.623Z","dateModified":"2026-10-04T13:10:58.079Z","description":"A step-by-step tutorial on implementing JWT (JSON Web Token) authentication in a .NET Core application. 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