errorlog

type Attr ¶

type Attr struct {
	Key   string
	Value string
}

Attr is a key/value pair from the record (or surrounding handler scope). Values are pre-rendered to strings so the UI does not need to know about slog.Value kinds.

type Entry ¶

type Entry struct {
	Time    time.Time
	Level   slog.Level
	Message string
	Attrs   []Attr
}

Entry is a captured slog record flattened for UI rendering.

type Handler ¶

type Handler struct {
	// contains filtered or unexported fields
}

Handler wraps a delegate slog.Handler and additionally captures records whose level is >= Level into Store. The delegate handler is always consulted (and invoked if it enables the record) so the existing JSON stderr output keeps working unchanged.

The delegate's own level filter determines what is written to stderr; Level controls what is captured into the ring buffer and may be more permissive.

func NewHandler(delegate slog.Handler, store *Store, captureLevel slog.Level) *Handler

func (h *Handler) Enabled(ctx context.Context, lvl slog.Level) bool

func (h *Handler) Handle(ctx context.Context, r slog.Record) error

func (h *Handler) WithAttrs(attrs []slog.Attr) slog.Handler

func (h *Handler) WithGroup(name string) slog.Handler

type Store ¶

type Store struct {
	// contains filtered or unexported fields
}

Store is a bounded ring buffer of captured entries. Writes are non-blocking; the oldest entry is overwritten when the buffer is full.

Store is safe for concurrent use.

func NewStore(capacity int) *Store

func (s *Store) Append(e Entry)

func (s *Store) Cap() int

func (s *Store) Len() int

func (s *Store) Snapshot() []Entry