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log.go
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log.go
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package log
import (
"os"
"log/slog"
)
type HandlerOptions struct {
Name string
MinLevel slog.Leveler
AddSource bool
}
func logAttrs(groups []string, a slog.Attr) slog.Attr {
if a.Key == slog.MessageKey {
a.Key = "message"
return a
}
if a.Key == slog.SourceKey {
a.Key = "src"
return a
}
if err, ok := a.Value.Any().(error); ok {
return slog.Group("error",
slog.String("message", err.Error()),
slog.Any("stack", CaptureStack().Slice()),
)
}
return a
}
func NewHandler(opts *HandlerOptions) *Handler {
handlerOpts := &slog.HandlerOptions{
Level: opts.MinLevel,
AddSource: opts.AddSource,
ReplaceAttr: logAttrs,
}
handler := slog.
NewJSONHandler(os.Stdout, handlerOpts).
WithAttrs([]slog.Attr{
slog.String("logger",opts.Name),
})
return &Handler{h: handler}
}