public override async Task Invoke(IOwinContext context)
{
var requestData = new RequestData();
var responseData = new ResponseData();
var requestStream = await CreateSeekableStream(context.Request.Body);
var responseStream = context.Response.Body;
context.Request.Body = requestStream;
using (var copyStream = new MemoryStream())
{
try
{
context.Response.Body = copyStream;
requestData = GetRequestData(context.Request);
await Next.Invoke(context);
responseData = GetResponseData(context.Response);
_requestLogger.Log(requestData, responseData);
}
catch (Exception ex)
{
_requestLogger.LogError(requestData, responseData, ex);
}
requestStream.Seek(0, SeekOrigin.Begin);
copyStream.Seek(0, SeekOrigin.Begin);
await copyStream.CopyToAsync(responseStream);
}
}
public override void OnError(HttpContextBase context)
{
var requestData = ExtractRequestData(context.Request);
var responseData = ExtractResponseData(context.Response);
var ex = context.Server.GetLastError();
_requestLogger.LogError(requestData, responseData, ex);
}
public void LogError_Should_Write_Exception_To_SystemConsole()
{
var requestData = new RequestData();
var responseData = new ResponseData();
var exception = new Exception();
_requestLogger.LogError(requestData, responseData, exception);
_systemConsole.Verify(x => x.WriteError(exception), Times.Once);
}
public void LogError_Should_Write_Exception_To_TraceListener()
{
var requestData = new RequestData();
var responseData = new ResponseData();
var exception = new Exception();
_requestLogger.LogError(requestData, responseData, exception);
_traceListener.Verify(x => x.WriteError(exception), Times.Once);
}
private static Func <NancyContext, Exception, dynamic> GetLogErrorHook(IRequestLogger requestLogger)
{
return((ctx, ex) =>
{
var requestData = ExtractRequestData(ctx.Request);
var responseData = ExtractResponseData(ctx.Response);
requestLogger.LogError(requestData, responseData, ex);
return ctx.Response;
});
}