Tag Archives: ASP.NET Core
Using Entra External ID with an Auth0 OpenID Connect identity provider
This post looks at implementing an Open ID Connect identity provider in Microsoft Entra External ID. Auth0 is used as the identity provider and an ASP.NET Core application is used to test the authentication. Microsoft Entra External ID federates to Auth0. Client code: https://github.com/damienbod/EntraExternalIdCiam Microsoft Entra External ID supports federation using OpenID Connect and was […]
Implement security headers for an ASP.NET Core API supporting OpenAPI Swagger UI
This article shows how to implement security headers for an application supporting an API and a swagger UI created from a open API in .NET 9. The security headers are implemented using the NetEscapades.AspNetCore.SecurityHeaders Nuget packages from Andrew Lock. Code: https://github.com/damienbod/WebApiOpenApi Deploying a web application which supports both an API and a UI have different […]
Implement a Geo-distance search using .NET Aspire, Elasticsearch and ASP.NET Core
This article shows how to implement a geo location search in an ASP.NET Core application using a LeafletJs map. The selected location can be used to find the nearest location with an Elasticsearch Geo-distance query. The Elasticsearch container and the ASP.NET Core UI application are setup for development using .NET Aspire. Code: https://github.com/damienbod/WebGeoElasticsearch Setup For […]
Using Elasticsearch with .NET Aspire
This post shows how to use Elasticsearch in .NET Aspire. Elasticsearch is setup to use HTTPS with the dotnet developer certificates and and simple client can be implemented to query the data. Code: https://github.com/damienbod/keycloak-backchannel Setup Two services are setup to run in .NET Aspire. The first service is the official Elasticsearch docker container and deployed […]
Implement OpenID Connect Back-Channel Logout using ASP.NET Core, Keycloak and .NET Aspire
This post shows how to implement an OpenID Connect back-channel logout using Keycloak, ASP.NET Core and .NET Aspire. The Keycloak and the Redis cache are run as containers using .NET Aspire. Two ASP.NET Core UI applications are used to demonstrate the server logout. Code: https://github.com/damienbod/keycloak-backchannel Setup The applications are run and tested using .NET Aspire. […]
Implement ASP.NET Core OpenID Connect OAuth PAR client with Keycloak using .NET Aspire
This post shows how to implement an ASP.NET Core application which uses OpenID Connect and OAuth PAR for authentication. The client application uses Keycloak as the identity provider. The Keycloak application is hosted in a docker container. The applications are run locally using .NET Aspire. This makes it really easy to develop using containers. Code: […]
Add a Swagger UI using a .NET 9 Json OpenAPI file
This post shows how to implement a Swagger UI using a .NET 9 produced OpenAPI file. The Swagger UI is deployed to a secure or development environment and is not deployed to a public production target. Sometimes, it is required to deploy the Swagger UI to a development deployment target and not the test or […]
Sonar Webinar, end to end security of a web application
I did a Webinar on application security with Denis Troller and Sonar. I would like to thank Sonar for this opportunity, I really enjoyed it and found doing this together with you really professional, pleasant and fun to do. Here’s the recording: Link to the Sonar Q&A: https://community.sonarsource.com/t/webinar-end-to-end-security-in-a-web-application/115405 Link to the repository: https://github.com/damienbod/EndToEndSecurity
Creating and downloading a PDF or DOCX in ASP.NET Core
The post shows how a PDF can be created from data in an ASP.NET Core backend and downloaded using an API. The data could be loaded from different locations and exported then as a PDF or a docx or whatever you require. Code: https://github.com/damienbod/AspNetCoreCreatePdf Why GemBox? There are many different tools to generate PDF all […]
Implement a secure Blazor Web application using OpenID Connect and security headers
This article shows how to implement a secure .NET 8 Blazor Web application using OpenID Connect and security headers with CSP nonces. The NetEscapades.AspNetCore.SecurityHeaders nuget package is used to implement the security headers and OpenIddict is used to implement the OIDC server. Code: https://github.com/damienbod/BlazorWebOidc OpenIddict is used as the identity provider and an OpenID connect […]
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