async Task IHttpHandler.OnSending(HttpSendingContext context)
{
Settings.ResultInspector = cacheEntry =>
{
((HttpResponseMessage)cacheEntry.Value).RequestMessage = context.Request;
};
await TryGetFromCache(context);
}
private async Task <HttpResponseMessage> ResultFromRequestAsync(IHttpBuilderContext context, HttpRequestMessage request, CancellationToken token)
{
ExceptionDispatchInfo capturedException = null;
HttpResponseMessage response = null;
try
{
var sendingContext = new HttpSendingContext(context, request);
token.ThrowIfCancellationRequested();
await context.HandlerRegister.OnSending(sendingContext);
if (sendingContext.Result != null)
{
response = sendingContext.Result;
}
else
{
token.ThrowIfCancellationRequested();
using (var client = _clientBuilder.Build())
response = await client.SendAsync(request, context.CompletionOption, token);
}
if (!context.IsSuccessfulResponse(response) && context.ExceptionFactory != null)
{
var ex = context.ExceptionFactory(response, request);
if (ex != null)
{
throw ex;
}
}
var sentContext = new HttpSentContext(context, request, response);
token.ThrowIfCancellationRequested();
await context.HandlerRegister.OnSent(sentContext);
response = sentContext.Result;
}
catch (Exception ex)
{
capturedException = ExceptionDispatchInfo.Capture(ex);
}
if (capturedException != null)
{
var exContext = new HttpExceptionContext(context, response, capturedException.SourceException);
await context.HandlerRegister.OnException(exContext);
if (!exContext.ExceptionHandled)
{
capturedException.Throw();
}
}
return(response);
}
public override Task OnSending(HttpSendingContext context)
{
context.Items["CustomHttpHandler"] = "CustomHttpHandler: It Works!";
return(base.OnSending(context));
}
