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My new book ASP.NET Core in Action, Third Edition is available now! It supports .NET 7.0, and is available as an eBook or paperback.

Using an IActionFilter to read action method parameter values in ASP.NET Core MVC
In this post I shown how you can use an IActionFilter in ASP.NET Core MVC to read the method parameters for an action method before it executes.…

Implementing custom token providers for passwordless authentication in ASP.NET Core Identity
In this post I show how to create 2 custom token providers for ASP.NET Core Identity, so that you can implement passwordless login with a short token expiry…

Exploring the Microsoft.AspNetCore.App shared framework in ASP.NET Core 2.1 (preview 1)
ASP.NET Core 2.1 introduces the Microsoft.AspNetCore.App shared framework. In this post, I look at the motivation for this change, and what it means for devs…

ASP.NET Core in Action - Filters
This post contains a sample from my book ASP.NET Core in Action, in which I provide a brief introduction to the MVC filter pipeline in ASP.NET Core.…

Coming in ASP.NET Core 2.1 - top-level MVC parameter validation
This post looks at a feature coming in ASP.NET Core 2.1 related to Model Binding in ASP.NET Core MVC/Web API Controllers - top-level parameter validation.…

Gotchas upgrading from IdentityServer 3 to IdentityServer 4
This post covers a couple of gotchas I experienced upgrading IdentityServer 3 to IdentityServer 4. In particular, changing URLs and a validation problem.…

