How to change Content-Type in Flurl?

Question

I have a .NET Core 2.0 WebApi application in which I have added the "Flurl.Http" (Version 2.1.0) NuGet package to my project.

I am trying to use Flurl to make a simple REST API call to one of Visual Studio Team Services' (VSTS) Api endpoints.

However, the particular VSTS api endpoint that I am calling requires that the Content-Type be set to "application/json-patch+json" instead of the typical "application/json".

In my Flurl call, I am using the "WithHeader()" method to try and set the Content-Type in the header of the request, but it is not working. Flurl seems to not allow me to override the default or standard Content-Type that is built into the PostJsonAsync method.

Does anyone know how to change the Content-Type of the request using Flurl? Or how to properly override the default behavior of the Content-Type in the Flurl configuration?

Thanks in advance!

My code:

public bool CreateNewBug(NewBugRequest newBugRequest)
{
    return _apiUrlToCreateNewBug.WithHeader("Authorization", "Basic Base64PersonalAccessTokenGoesHere")
                                .WithHeader("Content-Type", "application/json-patch+json")
                                .PostJsonAsync(newBugRequest.Fields)
                                .Result
                                .IsSuccessStatusCode;
}

(This code works, but the response from the VSTS api is that the Content-Type is not allowed and needs to be changed to "application/json-patch+json", which is what I tried to set it to in the header.)

Answer 1

New answer: Upgrade to the latest Flurl.Http. The issue has been fixed in 2.3.1, so the code posted in the question (the cleanest approach) should actually work as expected now.