A common problem when protecting your ASP.NET Core APIs is that expected claims are not found in the user object. In this blog post, I will give you some ideas for how to diagnose these types of problems. If you have claim problems related to the OpenIDConnect handler, head over to the blog post about …
Debugging JwtBearer Claim Problems in ASP.NET Core Read More »
A common issue with OpenID Connect authentication in ASP.NET Core is that expected claims are missing from the ClaimsPrincipal user object. In this blog post, I will provide some ideas for how to diagnose these types of problems. What is the purpose of the OpenIDConnect handler? The handler has two main tasks: When the …
Debugging OpenID Connect Claim Problems in ASP.NET Core Read More »
A common question that I help developers with on Stack Overflow is how to troubleshoot authentication problems when using the JwtBearer handler. Here I provide some of the best tips from my answers on Stack Overflow The JwtBearer handler We add the JwtBearer handler to the authentication middleware in our ASP.NET Core request pipeline, as …
Troubleshooting JwtBearer authentication problems in ASP.NET Core Read More »
A common question on Stack Overflow is about the different resource types in Dunde IdentityServer. My answer to this question on Stack Overflow is one of my most upvoted answers on Stack Overflow. With this blog post, I want to go further about what these resources are used for and how they affect your IdentityServer …
IdentityServer – IdentityResource vs. ApiResource vs. ApiScope Read More »
After my blog post about my Sega Mega Drive project, I was contacted by RetroRGB who wanted do an interview with me on their YouTube channel. This was my first major podcast/interview ever and it was a very fun experience. You can view the interview here.
As a developer and trainer, it is hard to keep up with all the changes in all the libraries, and in this blog post I will summarize the recent key changes that I have found in versions 3.1.22, 5.0.13 and 6.0.1 of JwtBearer library. The JwtBearer library is distributed in the Microsoft.AspNetCore.Authentication.JwtBearer NuGet package. The …
Introduction About 30 years ago (when I was around 20) I wanted to develop games, like most developers dream of doing. However, I had one open question: which platform should I write it for? Of course I could do it on the Atari 1040 STE that I had at the time, but I wanted to …
How I built my own Sega Mega Drive hardware dev kit from scratch Read More »
Over at Edument I blogged about how you can use the new source generator feature in .NET 5 to automatically generate an API for a system using the MediatR library and the CQRS pattern. Head over to Edument and read about it here.
While developing my latest course IdentityServer in Production, I discovered that there was a lack of support for storing the data protection key ring in Azure Key Vault. Head over to Edument to check out this blog post, where I explain how I implemented this support.
Whilst at Edument, we were constantly working to develop new courses. One of those courses was Securing ASP.NET using OpenID Connect and IdentityServer. Learn more about why we developed this particular training here. As a followup, we also created the IdentityServer in Production course, that focus on how to setup and deploy an instance of …
New Course – ASP.NET Core with OpenID Connect and IdentityServer Read More »