C# .net-core Web API Serilog：根据属性（即控制器名称）将文件记录到不同的文件夹

Question

我们的客户希望根据控制器将日志文件存储在单独的文件夹中。例如，所有命中 Shipping 控制器的日志将存储在 C:\logs\shipping\ 而那些命中订单控制器的日志将存储在 c:\logs\orders 中，依此类推。下面是我的 ConfigureLoggingServices 方法。我正在使用 Serilog 并写入文件和 Seq。我正在使用中间件来捕获客户端用户和 session ID（存储在请求 header 中）并使用 LogContext.PushProperty() 将这些值推送到日志条目。我不知何故需要将控制器的名称注入到日志文件的路径中。这可能吗？谢谢

private void ConfigureLoggingServices()
{
    var appName = Configuration.GetValue<string>("Logging:AppName", string.Empty);
    var SeqURL = Configuration.GetValue<string>("Logging:SeqURL", string.Empty);
    var pool = Environment.UserName;

    //string logFile = "C:\Logs\" + {Controller} + "\lis_api.log";
    string logFile = "C:\Logs\lis_api.log";
    const string customTemplate = "[{LIS_User} {Timestamp:HH:mm:ss.fff} {Level:u3} {SessionID}] {RequestMethod} {RequestPath} {Message:lj}{NewLine}{Exception}";

    var name = Assembly.GetExecutingAssembly().GetName();

    Log.Logger = new LoggerConfiguration()
        .MinimumLevel.Debug()
        .MinimumLevel.Override("Microsoft", LogEventLevel.Warning)
        .MinimumLevel.Override("System", LogEventLevel.Warning)
        .Enrich.FromLogContext()
        .Enrich.WithMachineName()
        .Enrich.WithProperty("Application", appName)
        .Enrich.WithProperty("Version", $"{name.Version}")
        .Enrich.WithProperty("AppPool", pool)
        .Destructure.ByTransforming<User>(x => new { x.ID, x.Name, x.Controller })

       // File Sink - Async
       .WriteTo.Async(a => a.
           File(string.Format(string.Format(logFile)),
           rollingInterval: RollingInterval.Day,
           outputTemplate: customTemplate,
           fileSizeLimitBytes: 40000000,
           shared: true,
           retainedFileCountLimit: 50,
           rollOnFileSizeLimit: true))                  

        .WriteTo.Seq(SeqURL)

        .CreateLogger();

    LoggerFactory = CreateLoggerFactory();
}

Answer 1

.WriteTo.Map(
    "Controller",
    "(None)",
    (ctrl, wt) => wt.File($"C:\Logs\{ctrl}\lis_api.log"))

C# .net-core Web API Serilog：根据属性（即控制器名称）将文件记录到不同的文件夹

C# .net-core Web API Serilog: log files to different folders based on property (i.e. controller name)

serilog

asp.net-core-webapi