How to make the .net HttpClient use http 2.0?

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1.Make sure you are on the latest version of Windows 10.

2.Install WinHttpHandler:

Install-Package System.Net.Http.WinHttpHandler

3.Extend WinHttpHandler to add http2.0 support:

public class Http2CustomHandler : WinHttpHandler
{
    protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, System.Threading.CancellationToken cancellationToken)
    {
        request.Version = new Version("2.0");
        return base.SendAsync(request, cancellationToken);
    }
}

4.Pass above handler to the HttpClient constructor

using (var httpClient = new HttpClient(new Http2CustomHandler()))
{
      // your custom code
}

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