Tutorials ASP.NET Core Web API Tutorial
Refresh Token in ASP.NET Core Web API using JWT Authentication — Complete Guide
Refresh Token in ASP.NET Core Web API using JWT Authentication — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of ASP.NET Core Web API Tutorial on Toolliyo Academy.
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ASP.NET Core Web API Tutorial · Lesson 145 of 175
Refresh Token in ASP.NET Core Web API using JWT Authentication
Beginner ✓ → Intermediate ✓ → Advanced → Professional
Advanced · 3 — Security & patterns · ~10 min · Module 13: Security
What is this?
Refresh Token in ASP.NET Core Web API using JWT Authentication protects ShopNest.API — passwords, tokens, encryption, CORS, and SSO flows for real users.
Why should you care?
Public APIs are scanned within hours of deploy. Auth mistakes are resume-ending in security reviews.
See it live — copy this example
Create a Web API (dotnet new webapi), paste the example, run dotnet run, test in Swagger.
[Authorize(Roles = "Admin")]
[HttpPost]
public Task<IActionResult> Refund(int orderId);
Run Example »
This lesson uses terminal or setup steps. Run commands on your computer — the live editor appears on coding lessons.
What happened?
- Study the example, run dotnet run, and test in Swagger.
- Refresh Token in ASP.NET Core Web API using JWT Authentication connects to earlier modules in this course.
Try it yourself
- Read what Refresh Token in ASP.NET Core Web API using JWT Authentication means for ShopNest.API.
- Type the example — do not only copy-paste.
- Test in Swagger or Postman.
- Change a route URL or DTO property and save — test again in Swagger or curl.
- Return the wrong status code on purpose (404 instead of 200) and see what the client shows.
Remember
You understand Refresh Token in ASP.NET Core Web API using JWT Authentication in plain language. You traced or ran working C# in ShopNest.API. Move on when you can teach this topic to a friend.