Servers - Kestrel - HTTP/2

In this article

• Operating system

  • Windows Server 2016/Windows 10 or later‡

  • Linux with OpenSSL 1.0.2 or later (for example, Ubuntu 16.04 or later)

  • macOS 10.15 or later

• Target framework: .NET Core 2.2 or later

• Application-Layer Protocol Negotiation (ALPN) connection

• TLS 1.2 or later connection

Advanced HTTP/2 features

Trailers

if (httpContext.Response.SupportsTrailers())
{
    httpContext.Response.DeclareTrailer("trailername");	

    // Write body
    httpContext.Response.WriteAsync("Hello world");

    httpContext.Response.AppendTrailer("trailername", "TrailerValue");
}

• SupportsTrailers ensures that trailers are supported for the response.

• DeclareTrailer adds the given trailer name to the Trailer response header. Declaring a response's trailers is optional, but recommended. If DeclareTrailer is called, it must be before the response headers are sent.

• AppendTrailer appends the trailer.

Reset

var resetFeature = httpContext.Features.Get<IHttpResetFeature>();
resetFeature.Reset(errorCode: 2);

Ref: Use HTTP/2 with the ASP.NET Core Kestrel web server