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I’m looking for an elegant way to log each case of an Either on my controller without going `when (either) {}` everywhere.
Any ideas?

Yes, `tap` and `tapLeft` allow you to run a function and _peek_ the value without adjusting the final result.

They're going to be renamed to `onRight` and `onLeft` in line with `Result#onSuccess` and `Result#onFailure` from Kotlin Std btw. Just plugging this here again in an attempt to get more feedback, this might also give you a better overview of the functionality available for Either <@U02U0AJB5FY>.

<https://github.com/arrow-kt/arrow/pull/2830>