Category dotnet
Implementing a Client White-list using ASP.NET Core Middleware
This article shows how a client safe-list could be implemented using ASP.NET Core middleware checking the Remote IP address of the request. If the client IP is on the safe-list, no restrictions exist. Code: https://github.com/damienbod/ClientIpAspNetCoreIIS History 2018-08-30 Updated to .NET core 2.1 and added support for IP6 The middleware uses an admin white-list parameter from […]
EF Core diagnosis and features with MS SQL Server
This article shows how Entity Framework Core messages can be logged, and compared using the SQL Profiler and also some of the cool new 1.1 features, but not all. All information can be found on the links at the bottom and especially the excellent docs for EF Core. Code: https://github.com/damienbod/EFCoreFeaturesAndDiag project.json with EF Core packages […]
Extending Identity in IdentityServer4 to manage users in ASP.NET Core
This article shows how Identity can be extended and used together with IdentityServer4 to implement application specific requirements. The application allows users to register and can access the application for 7 days. After this, the user cannot log in. Any admin can activate or deactivate a user using a custom user management API. Extra properties […]
Angular search with ASP.NET Core and Elasticsearch
This article shows how a website search could be implemented using Angular, ASP.NET Core and Elasticsearch. Most users expect autocomplete and a flexible search like some of known search websites. When the user enters a char in the search input field, an autocomplete using a shingle token filter with a terms aggregation used to suggest […]
Angular autocomplete with ASP.NET Core and Elasticsearch
This article shows how autocomplete could be implemented in Angular using ASP.NET Core MVC as a data service. The API uses Elasticsearch to query the data requests. ng2-completer is used to implement the Angular autocomplete functionality. Code: https://github.com/damienbod/Angular2AutoCompleteAspNetCoreElasticsearch 2017.02.10: Updated to VS2017, Angular 2.4.6 and webpack 2.2.1 2017.01.07: Updated to csproj, webpack 2.2.0-rc.3, angular 2.4.1 […]
IdentityServer4, Web API and Angular in a single ASP.NET Core project
This article shows how IdentityServer4 with Identity, a data Web API, and an Angular SPA could be setup inside a single ASP.NET Core project. The application uses the OpenID Connect Implicit Flow with reference tokens to access the API. The Angular application uses webpack to build. Code: https://github.com/damienbod/AspNet5IdentityServerAngularImplicitFlow History: 2019-09-20: Updated ASP.NET Core 3.0, Angular […]
Setting the NLog database connection string in the ASP.NET Core appsettings.json
This article shows how the NLog connection string for the DatabaseTarget can be configured in the appsettings.json in an ASP.NET Core project and not the XML nlog.config file. All the NLog target properties can be configured in code if required and not just in the NLog XML configuration file. Code: https://github.com/damienbod/AspNetCoreNlog 2020-01-12 Updated to .NET […]
Full Server logout with IdentityServer4 and OpenID Connect Implicit Flow
The article shows how to fully logout from IdentityServer4 using an OpenID Connect Implicit Flow. Per design when using an access token to use protected data from a resource server, even if the client has logged out from the server, the access token can be used so long it is valid (AccessTokenLifetime) as it is […]
ASP.NET Core Action Arguments Validation using an ActionFilter
This article shows how to use an ActionFilter to validate the model from a HTTP POST request in an ASP.NET Core MVC application. Code: https://github.com/damienbod/AngularAutoSaveCommands History 2021-01-20: Updated to ASP.NET Core 5, Angular CLI 11.0.9 2019-07-31: Updated to ASP.NET Core 3.0 Preview 7, Updated to Angular 8.1.3 2019-02-16: Updated to Angular 7.2.4, ASP.NET Core 2.2 […]
Angular Auto Save, Undo and Redo
This article shows how to implement auto save, Undo and Redo commands in an Angular SPA. The Undo and the Redo commands work for the whole application and not just for single components. The Angular app uses an ASP.NET Core service implemented in the previous blog. Code: https://github.com/damienbod/AngularAutoSaveCommands History 2021-01-20: Updated to ASP.NET Core 5, […]
Software Engineering 