Tag Archives: MVC

Uploading and sending image messages with ASP.NET Core SignalR

This article shows how images could be uploaded using a file upload with a HTML form in an ASP.MVC Core view, and then sent to application clients using SignalR. The images are uploaded as an ICollection of IFormFile objects, and sent to the SignalR clients using a base64 string. Angular is used to implement the […]

ASP.NET Core Authorization for Windows, Local accounts

This article shows how authorization could be implemented for an ASP.NET Core MVC application. The authorization logic is extracted into a separate project, which is required by some certification software requirements. This could also be deployed as a separate service. Code: https://github.com/damienbod/AspNetCoreWindowsAuth Blogs in this series: Supporting both Local and Windows Authentication in ASP.NET Core […]

Securing an ASP.NET Core MVC application which uses a secure API

The article shows how an ASP.NET Core MVC application can implement security when using an API to retrieve data. The OpenID Connect Hybrid flow is used to secure the ASP.NET Core MVC application. The application uses tokens stored in a cookie. This cookie is not used to access the API. The API is protected using […]

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 […]

Using Angular in an ASP.NET Core View with Webpack

This article shows how Angular can be run inside an ASP.NET Core MVC view using Webpack to build the Angular application. By using Webpack, the Angular application can be built using the AOT and Angular lazy loading features and also profit from the advantages of using a server side rendered view. If you prefer to […]

Implementing an Audit Trail using ASP.NET Core and Elasticsearch with NEST

This article shows how an audit trail can be implemented in ASP.NET Core which saves the audit documents to Elasticsearch using NEST. Code: https://github.com/damienbod/AspNetCoreElasticsearchNestAuditTrail History 2020-01-12 Updated to .NET Core 3.1 2019-02-15 Updated to .NET Core 2.2 Should I just use a logger? Depends. If you just need to save requests, responses and application events, […]

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 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 nuget packages 2018-11-22: Updated to Angular 7.1.0, nuget packages 2018-09-28: […]

Injecting Configurations in Razor Views in ASP.NET Core

This article shows how application configurations can be injected and used directly in razor views in an ASP.NET Core MVC application. This is useful when an SPA requires application URLs which are different with each deployment and need to be deployed as configurations in a json or xml file. Code: https://github.com/damienbod/AspNetCoreInjectConfigurationRazor 2019-07-29 Updated to ASP.NET […]

Import and Export CSV in ASP.NET Core

This article shows how to import and export csv data in an ASP.NET Core application. The InputFormatter and the OutputFormatter classes are used to convert the csv data to the C# model classes. Code: https://github.com/damienbod/AspNetCoreCsvImportExport 2019-09-14: Updated to ASP.NET Core 3.0 2019-02-15: Updated to ASP.NET Core 2.2 2018-07-09: Updated to ASP.NET Core 2.1 2017-10-29: Support […]

Adding SQL localization data using an Angular form and ASP.NET Core

This article shows how SQL localized data can be added to a database using Angular forms which can then be displayed without restarting the application. The ASP.NET Core localization is implemented using Localization.SqlLocalizer. This NuGet package is used to save and retrieve the dynamic localized data. This makes it possible to add localized data at […]