handler which adds eventid always at root level, not within a WithGroup

[the42]

I am banging my head in this seemingly easy and as I think not unreasonable issue.

• I would like to create a new slog handler which adds a field eventID with an outomatically added UUID

  Achieved, writing custom handler type an custom Handler which adds a new field. Alternatively some trickery with ReplaceAttr also get's me there, Handler is cleaner though.

• I would like to add further logging attributes into a group "custom", therefore I call myslogderivedlogger.WithGroup("custom").

  Here it get's funny though, as the field eventid is now added as custom.eventID instead at the "root" level, at the root level there is no more eventId

Would your slog middleware help me in getting there?

[samber]

did you write

myslogderivedlogger.WithGroup("custom")

or

myslogderivedlogger = myslogderivedlogger.WithGroup("custom")

?

[the42]

Samuel Berthe ***@***.***> schrieb am Sa., 11. Mai 2024, 22:54:

did you write myslogderivedlogger.WithGroup("custom") or myslogderivedlogger = myslogderivedlogger.WithGroup("custom") I used this second form as according to the doc, the logger is not altered

but a new one created

…

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[samber]

Could you please write a short demo of the bug?

i did it many times, without any issue