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  1. Catalog
  2. System.Net.Http
  3. HttpClientHandler
  4. Send(HttpRequestMessage, CancellationToken)
  • HttpClientHandler
    • HttpClientHandler()
    • AllowAutoRedirect
    • AutomaticDecompression
    • CheckCertificateRevocationList
    • ClientCertificateOptions
    • ClientCertificates
    • CookieContainer
    • Credentials
    • DangerousAcceptAnyServerCertificateValidator
    • DefaultProxyCredentials
    • MaxAutomaticRedirections
    • MaxConnectionsPerServer
    • MaxRequestContentBufferSize
    • MaxResponseHeadersLength
    • MeterFactory
    • PreAuthenticate
    • Properties
    • Proxy
    • ServerCertificateCustomValidationCallback
    • SslProtocols
    • SupportsAutomaticDecompression
    • SupportsProxy
    • SupportsRedirectConfiguration
    • UseCookies
    • UseDefaultCredentials
    • UseProxy
    • Dispose(Boolean)
    • Send(HttpRequestMessage, CancellationToken)
    • SendAsync(HttpRequestMessage, CancellationToken)
    • SupportsAllowAutoRedirect(HttpClientHandler)
    • SupportsPreAuthenticate(HttpClientHandler)
    • SupportsProtocolVersion(HttpClientHandler)
    • SupportsTransferEncodingChunked(HttpClientHandler)
    • SupportsUseProxy(HttpClientHandler)
net9.0
namespace System.Net.Http
{
    public class HttpClientHandler : HttpMessageHandler
    {
        [UnsupportedOSPlatform("browser")]
        protected internal override HttpResponseMessage! Send(HttpRequestMessage! request, CancellationToken cancellationToken);
    }
}
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Reference this API
.NET
5.06.07.08.09.0
Information specific to net9.0
Assembly

System.Net.Http , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Platform Restrictions

This API is supported on any platform except for these:

  • Browser
  • Built-in API
  • Package-provided API
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10/16/2026
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