/// <summary>
/// Called by aspnet pipeline
/// </summary>
/// <param name="context">HttpContext</param>
/// <returns>Task (void)</returns>
public async Task Invoke(HttpContext context)
{
if (context == null)
{
return;
}
CorrelationVector cv;
DateTime dtStart = DateTime.Now;
double duration = 0;
double ttfb = 0;
cv = CorrelationVectorExtensions.Extend(context);
// Invoke next handler
if (next != null)
{
await next.Invoke(context).ConfigureAwait(false);
}
// compute request duration
duration = Math.Round(DateTime.Now.Subtract(dtStart).TotalMilliseconds, 2);
ttfb = ttfb == 0 ? duration : ttfb;
// don't log favicon.ico 404s
if (context.Request.Path.StartsWithSegments("/favicon.ico", StringComparison.OrdinalIgnoreCase))
{
return;
}
LogRequest(context, cv, ttfb, duration);
}
// convert log to dictionary
private Dictionary <string, object> GetDictionary(string method, string message, LogLevel logLevel, HttpContext context = null)
{
Dictionary <string, object> data = new Dictionary <string, object>
{
{ "Date", DateTime.UtcNow },
{ "LogName", Name },
{ "Method", method },
{ "Message", message },
{ "LogLevel", logLevel.ToString() },
};
if (context != null && context.Items != null)
{
data.Add("Path", context.Request.Path + (string.IsNullOrWhiteSpace(context.Request.QueryString.Value) ? string.Empty : context.Request.QueryString.Value));
if (context.Items != null)
{
CorrelationVector cv = CorrelationVectorExtensions.GetCorrelationVectorFromContext(context);
if (cv != null)
{
data.Add("CVector", cv.Value);
}
}
}
return(data);
}