Josef Ottosson

Freelancing Developer ยท Microsoft MVP

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© Josef Ottosson 2026

asp.net core

A collection of 27 posts

asp.net core

Model bind multiple sources to a single class in ASP.NET Core

How to model bind multiple sources to a single class

4 years ago April 28th, 2022 2 min read
postgres

Gotcha when using Postgres, NodaTime, Ef Core and Dapper

We had a really annoying bug regarding NodaTime and Dapper. Our integration tests worked but not when calling the API via Postman...

4 years ago March 23rd, 2022 2 min read
httpclient

HttpClient - DelegatingHandler - Correlation Id

Shows two different ways of forwarding correlation ids when using HttpClient in dotnet core

4 years ago December 23rd, 2021 3 min read
Beware of potential XSS injections when using ProblemDetails in ASP.NET Core
asp.net core

Beware of potential XSS injections when using ProblemDetails in ASP.NET Core

The default behaviour of ProblemDetails in ASP.NET Core does not escape the user input, this can lead to XSS injections

5 years ago November 7th, 2021 6 min read
Dealing with access tokens in dotnet
httpclient

Dealing with access tokens in dotnet

Dealing with access tokens (including renewal) in dotnet

5 years ago July 8th, 2021 7 min read
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© Josef Ottosson 2026