Adding RecoverHandlerError

recovery := slogformatter.RecoverHandlerError(
    func(ctx context.Context, record slog.Record, err error) {
        // will be called only if subsequent handlers fail or return an error
        log.Println(err.Error())
    },
)
sink := NewSinkHandler(...)
logger := slog.New(
    slogmulti.
        Pipe(recovery).
        Handler(sink),
)

Upgrade deps

The FormatByType+FormatByKind+FormatByKey formatter now navigate through the nested attributes.

upgrade deps

Upgrade go v1.21

• Upgrade slog
• Fix slog.Group and slog.JSONHandler breaking changes

Adding flatten formatter middleware

Adding stacktrace to error formatter

• Upgrade to go 1.20.3
• Upgrade to golang.org/x/exp nightly