/// <summary>
 /// LoggingMiddleware
 /// </summary>
 /// <param name="next"></param>
 /// <param name="loggerFactory"></param>
 /// <param name="options"></param>
 public LoggingMiddleware(RequestDelegate next, ILoggerFactory loggerFactory, LoggingMiddlewareOptions options)
 {
     _next    = next;
     _logger  = loggerFactory.CreateLogger <LoggingMiddleware>();
     _options = options;
 }
 /// <summary>
 /// UseLoggingMiddleware
 /// </summary>
 /// <param name="builder"></param>
 /// <param name="options"></param>
 /// <returns></returns>
 public static IApplicationBuilder UseLoggingMiddleware(
     this IApplicationBuilder builder, LoggingMiddlewareOptions options)
 {
     return(builder.UseMiddleware <LoggingMiddleware>(options));
 }