Author Archives: damienbod

Creating specific themes for OIDC clients using razor views with IdentityServer4

This post shows how to use specific themes in an ASPNET Core STS application using IdentityServer4. For each OpenId Connect (OIDC) client, a separate theme is used. The theme is implemented using Razor, based on the examples, code from Ben Foster. Thanks for these. The themes can then be customized as required. Code: https://github.com/damienbod/AspNetCoreIdentityServer4Persistence Setup […]

Using an EF Core database for the IdentityServer4 configuration data

This article shows how to implement a database store for the IdentityServer4 configurations for the Client, ApiResource and IdentityResource settings using Entity Framework Core and SQLite. This could be used, if you need to create clients, or resources dynamically for the STS, or if you need to deploy the STS to multiple instances, for example […]

Sending Direct Messages using SignalR with ASP.NET core and Angular

This article should how SignalR could be used to send direct messages between different clients using ASP.NET Core to host the SignalR Hub and Angular to implement the clients. Code: https://github.com/damienbod/AspNetCoreAngularSignalR Other posts in this series: Getting started with SignalR using ASP.NET Core and Angular SignalR Group messages with ngrx and Angular Using EF Core […]

IdentityServer4 Localization using ui_locales and the query string

This post is part 2 from the previous post IdentityServer4 Localization with the OIDC Implicit Flow where the localization was implemented using a shared cookie between the applications. This has its restrictions, due to the cookie domain constraints and this post shows how the oidc optional parameter ui_locales can be used instead, to pass the […]

IdentityServer4 Localization with the OIDC Implicit Flow

This post shows how to implement localization in IdentityServer4 when using the Implicit Flow with an Angular client. Code: https://github.com/damienbod/AspNet5IdentityServerAngularImplicitFlow The problem When the oidc implicit client calls the endpoint /connect/authorize to authenticate and authorize the client and the identity, the user is redirected to the AccountController login method using the IdentityServer4 package. If the […]

Shared Localization in ASP.NET Core MVC

This article shows how ASP.NET Core MVC razor views and view models can use localized strings from a shared resource. This saves you creating many different files and duplicating translations for the different views and models. This makes it much easier to manage your translations, and also reduces the effort required to export, import the […]

Implementing custom policies in ASP.NET Core using the HttpContext

This article shows how to implement a custom ASP.NET Core policy using the AuthorizationHandler class. The handler validates, that the identity from the HttpContext has the authorization to update the object in the database. Code: https://github.com/damienbod/AspNetCoreAngularSignalRSecurity Scenerio In the example, each admin user of the client application, can create DataEventRecord entities which can only be […]