Function New

pkg/cache/cache.go:100–122

New creates a new Cache[T]. If NATS options are provided and the connection is non-nil, a NATS KV backend is returned. Otherwise an in-memory LRU is used.

(opts ...Option)

// New creates a new Cache[T]. If NATS options are provided and the connection
// is non-nil, a NATS KV backend is returned. Otherwise an in-memory LRU is used.
func New[T any](opts ...Option) (Cache[T], error) {
	cfg := &config{}
	for _, o := range opts {
		o(cfg)
	}

	if cfg.ttl <= 0 {
		return nil, errors.New("cache: TTL must be greater than 0")
	}

	if cfg.logger == nil {
		cfg.logger = nopLogger{}
	}

	if cfg.natsConn != nil {
		if cfg.bucketName == "" {
			return nil, errors.New("cache: bucket name is required when NATS backend is enabled")
		}
		return newNATSKV[T](cfg)
	}

	return newMemoryCache[T](cfg), nil
}

// nopLogger is a no-op implementation of Logger.
type nopLogger struct{}