System.Net.Http.MessageProcessingHandler
namespace System.Net.Http
{
public abstract class MessageProcessingHandler : DelegatingHandler
{
protected MessageProcessingHandler();
protected MessageProcessingHandler(HttpMessageHandler innerHandler);
protected abstract HttpRequestMessage ProcessRequest(HttpRequestMessage request, CancellationToken cancellationToken);
protected abstract HttpResponseMessage ProcessResponse(HttpResponseMessage response, CancellationToken cancellationToken);
}
}