update

cache/msg_pack.go

@@ -0,0 +1,43 @@
+package cache
+
+import (
+	"github.com/vmihailenco/msgpack/v5"
+)
+
+func Marshal(v any) ([]byte, error) {
+	switch v := v.(type) {
+	case nil:
+		return nil, nil
+	case []byte:
+		return v, nil
+	case string:
+		return []byte(v), nil
+	}
+
+	b, err := msgpack.Marshal(v)
+	if err != nil {
+		return nil, err
+	}
+
+	return b, err
+}
+
+func Unmarshal(b []byte, v any) error {
+	if len(b) == 0 {
+		return nil
+	}
+
+	switch v := v.(type) {
+	case nil:
+		return nil
+	case *[]byte:
+		clone := make([]byte, len(b))
+		copy(clone, b)
+		*v = clone
+	case *string:
+		*v = string(b)
+		return nil
+	}
+
+	return msgpack.Unmarshal(b, v)
+}