diff --git a/pkg/cache/type.go b/pkg/cache/type.go
new file mode 100644
index 00000000..5327760e
--- /dev/null
+++ b/pkg/cache/type.go
@@ -0,0 +1,24 @@
+package cache
+
+import (
+	"time"
+)
+
+type Adapter interface {
+	Connect()
+	Get(key string) (string, error)
+	Set(key string, val interface{}, expire int) error
+	Del(key string) error
+	HashGet(hk, key string) (string, error)
+	HashDel(hk, key string) error
+	Increase(key string) error
+	Expire(key string, dur time.Duration) error
+	SetQueue(name string, message Message) error
+	GetQueue(name string, f func(message Message) error)
+}
+
+type Message struct {
+	ID     string
+	Stream string
+	Values map[string]interface{}
+}