feature-request: Allow setting format.message.mdc.fieldName to an empty string.

loki4j / loki-logback-appender

Fast and lightweight implementation of Logback appender for Grafana Loki

https://loki4j.github.io/loki-logback-appender/

BSD 2-Clause "Simplified" License

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feature-request: Allow setting format.message.mdc.fieldName to an empty string. #264

Open apollo13 opened 1 month ago

apollo13 commented 1 month ago

I'd love to set format.message.mdc.fieldName to an empty string. I have tried setting it to <fieldName></fieldName> but I am still ending up with an mdc_ prefix. Did I get the config wrong or is it not possible to unset the prefix completely?

nehaev commented 1 month ago

Thanks for reporting this, @apollo13!

Looks like logback configuration system (joran) ignores empty values. Probably we would need to introduce a special property to signal that no prefix is needed.

apollo13 commented 1 month ago

That would be great :+1: