basedir in appsettings.json in asp.net core

Question

I started my new project in ASP.NET Core and I have a question.

I have 2 loggers: a) nLog, that have it's config in nlog.config file b) serilog, that have it's config in appsettings.json

At this moment, I have 2 locations to store logs: fileName="${basedir}/logs/EPR/nlog-all-${shortdate}.log - nLog "SerilogFile": "logs/serilog-{Date}.txt" - serilog

My question is, how to get basedir catalog in appsettings.json file.

Did you solve that date append issue. If so how? – Ali Oct 22 '20 at 03:48 — Ali, Oct 22 '20 at 03:48

score 3 · Accepted Answer · answered Nov 29 '16 at 04:51

3

One option is to set an environment variable with the base path at startup:

Environment.SetEnvironmentVariable("BASEDIR", AppDomain.CurrentDomain.BaseDirectory);

Then use "%BASEDIR%/logs/serilog-{Date}.txt" in the config.

answered Nov 29 '16 at 04:51

Nicholas Blumhardt

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score 1 · Answer 2 · answered Nov 28 '16 at 09:46

1

Short: You can't in appsettings.json.

Longer: You can in code via the static PlatformServices class.

PlatformServices.Default.Application.ApplicationBasePath;

and then use replace or whatever you seem fit to replace the ${basedir} with the value returned by ApplicationBasePath, then pass it to your loggers configuration.

Sidenote: You shouldn't use PlatformServices outside of the Startup/Programm class, since they are static and bad to test etc.

answered Nov 28 '16 at 09:46

Tseng

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Ehhh, it's bad that this is impossible:( – zchpit Nov 28 '16 at 13:34
Is it still not supported – Ali Oct 22 '20 at 03:48

basedir in appsettings.json in asp.net core

2 Answers2