I believe the intention is that you shouldn't format this, but make `err` an `Attr`. i.e. the philosophy behind structured logging is specifically, not to do formatting, as it produces unstructured data. Whether I'm personally convinced by that philosophy is another question, but I think that's the reason these where left out.
On Wed, Dec 13, 2023 at 3:30 AM 'Billy Lynch' via golang-nuts < golang-nuts@googlegroups.com> wrote: > Hi! > > I've been playing around with the new slog package, and I noticed that it > was missing formatter funcs (Infof, Errorf, etc). I'm interested in adding > these, but I wasn't sure if this was done intentionally since the godoc calls > out this type of functionality in examples > <https://pkg.go.dev/log/slog#hdr-Wrapping_output_methods>. > > Helpers have been suggested as a workaround for this > <https://github.com/golang/go/issues/59145#issuecomment-1481920720>, but > this is common enough behavior for me that I think it'd be very helpful to > have upstream to make it easy to do things like: slog.Errorf("error calling > func: %v", err) > > Rough idea would be do expose formatter functions in the Logger > <https://pkg.go.dev/log/slog#Logger>, with the tradeoff that you replace > formatter args for Attr args: > > ```go > func (l *Logger) Errorf(format string, args ...any) { > l.log(context.Background(), LevelError, fmt.Sprintf(msg, args...)) > } > > func (l *Logger) ErrorContextf(ctx context.Background(ctx context.Context, > format string, args ...any) { > l.log(ctx, LevelError, fmt.Sprintf(msg, args...)) > } > ``` > > I wanted to check in before I opened an issue! 🙏 > Let me know if this makes sense, or if there's context I'm missing. > > Thanks! > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/9316489a-3a0c-4b8e-b789-534662a9bbben%40googlegroups.com > <https://groups.google.com/d/msgid/golang-nuts/9316489a-3a0c-4b8e-b789-534662a9bbben%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAEkBMfGQ-hs-C1cEy_WLWWX4Gj9ZP7%3DspyUgdv2s7Zs3TdHP0g%40mail.gmail.com.
