Tag Archives: ASP.NET Core
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 the CDN links in the ASP.NET Core 2.1 templates
This article uses the the ASP.NET Core 2.1 MVC template and shows how to secure the CDN links using the integrity parameter. A new ASP.NET Core MVC application was created using the 2.1 template in Visual Studio. This template uses HTTPS per default and has added some of the required HTTPS headers like HSTS which […]
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 […]
Sending Direct Messages using SignalR with ASP.NET Core and Angular
This article shows 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/AspNetCoreAngularSignalRSecurity Posts in this series History 2023-01-08 Updated Angular 15, .NET 72021-01-25 Updated Angular 11.1.0 .NET 5, ngrx implementation2020-03-21 updated packages, fixed Admin UI STS2019-08-18 […]
Securing an Angular SignalR client using JWT tokens with ASP.NET Core and Duende IdentityServer
This post shows how an Angular SignalR client can send secure messages using JWT bearer tokens with an API and an STS server. The STS server is implemented using Duende IdentityServer and the API is implemented using ASP.NET Core. Code: https://github.com/damienbod/AspNetCoreAngularSignalRSecurity Posts in this series History 2023-01-08 Updated Angular 15, .NET 72021-01-25 Updated Angular 11.1.0 […]
Using EF Core and SQLite to persist SignalR Group messages in ASP.NET Core
The article shows how SignalR messages can be saved to a database using EF Core and SQLite. The post uses the SignalR Hub created in this blog; SignalR Group messages with ngrx and Angular, and extends it so that users can only join an existing SignalR group. The group history is then sent to the […]
Angular Configuration using ASP.NET Core settings
This post shows how ASP.NET Core application settings can be used to configure an Angular application. ASP.NET Core provides excellent support for different configuration per environment, and so using this for an Angular application can be very useful. Using CI, one release build can be automatically created with different configurations, instead of different release builds […]
Implementing Two-factor authentication with IdentityServer4 and Twilio
This article shows how to implement two factor authentication using Twilio and IdentityServer4 using Identity. On the Microsoft’s Two-factor authentication with SMS documentation, Twilio and ASPSMS are promoted, but any SMS provider can be used. Code: https://github.com/damienbod/AspNetCoreID4External 2017-09-23 Updated to ASP.NET Core 2.0 Setting up Twilio Create an account and login to https://www.twilio.com/ Now create […]
Software Engineering 