CODEWITHSUNDEEP
.netloggingfilenamesserilog
Kim
Kim

Reputation: 150

What file name placeholders are available for Serilog?

I use Serilog on a .NET Core application with RollingFile. I wonder, if there are different filename placeholders? I only know {Date}.

For example, I have code like

        Log.Logger = new LoggerConfiguration()
            .MinimumLevel.Information()
            .WriteTo.RollingFile("Logs/{Date}.log")
            .CreateLogger();

Are there any other options for the filename like {Date}? I'd like to have log files by hour.

Upvotes: 7

Views: 22364

Answers (3)

turhan
turhan

Reputation: 51

You can also add environment variables into the appsettings.json as %USERNAME%

Upvotes: 0

Igor Beaufils
Igor Beaufils

Reputation: 914

UPDATE : 2022

Because "Serilog.Sinks.RollingFile" is obsolete now you should use "Serilog.Sinks.File" It's as easy though :

var log = new LoggerConfiguration()
    .WriteTo.File("log.txt", rollingInterval: RollingInterval.Day)
    .CreateLogger();

This will append the time period to the filename, creating a file set like:

log20180631.txt
log20180701.txt
log20180702.txt

For differentes choices :

enter image description here

https://github.com/serilog/serilog-sinks-file

Upvotes: 11

C. Augusto Proiete
C. Augusto Proiete

Reputation: 27878

At the time of this writing, Serilog's Rolling File sink supports 3 (three) specifiers:

  • {Date}, which is formatted as yyyyMMdd
  • {Hour}, which is formatted as yyyyMMddHH
  • {HalfHour}, which is formatted as yyyyMMddHHmm

You can see it in the README of the Rolling File sink, as well as in the source code of the Rolling File sink.

Upvotes: 17

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