Is there an option in Serilog to change log file parameters in runtime, the same way LogLevel can be changed?

user_15381922 0
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With Serilog in asp.net core you can change the log level in runtine by using

MinimumLevel.ControlledBy(SeriLogLevelSwitch).

Is there a similar way to do this with LoggerConfiguration().WriteTo.File(...)

For instance i need to change the configuration for log fileSizeLimitBytes, or rollingInterval withour restaring the service. Can this be achieved with Serilog?

serilog asp.net-core
1 Answers

By pulling in the latest Serilog.AspNetCore you'll find a class called ReloadableLogger, constructed through the CreateBootstrapLogger() extension method:

// using Serilog;
var logger = new LoggerConfiguration()
  .WriteTo.File(...)
  .CreateBootstrapLogger();

// Optional but suggested:
Log.Logger = logger;

// Use the logger...

// Change parameters later on:
logger.Reload(lc => lc
  .WriteTo.File(...));

You might find that some interactions between CreateBootstrapLogger() and UseSerilog(callback) in ASP.NET Core trip things up a bit; if you use this technique, try the parameterless version of UseSerilog().

ReloadableLogger has only just appeared and is focusing on a slightly different scenario, so you may still need to work through some awkwardness setting this up - YMMV.

user_1382060
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