logging - 如何更改 F# Saturn Framework 中的日志级别？

Question

当我运行我的 Saturn 应用程序时，我看到一些日志被写入控制台。

看起来他们是从 LogLevel.Info 开始的。我如何进行更详细的日志记录，即如何正确设置，例如LogLevel.Trace?

Answer 1

一种方法是在土星中设置 logging app builder :

let app = application {
    pipe_through endpointPipe

    router topRouter
    url "http://0.0.0.0:8085/"
    memory_cache
    use_static "static"
    use_gzip
    logging configureLogging
}

你可以像这样进行配置:

let configureLogging (logging: ILoggingBuilder) =
    logging.SetMinimumLevel(LogLevel.Trace) |> ignore

我发现的唯一土星例子是 here ，在土星样本中。有more对于 ASP.NET Core，在其之上构建了 Saturn。

默认日志级别为 indeed LogLevel.Info:

If you don't explicitly set the minimum level, the default value is Information, which means that Trace and Debug logs are ignored.

Remember不要为生产设置 LogLevel.Trace:

These messages may contain sensitive application data. These messages are disabled by default and should never be enabled in a production environment.