feat: local cache

pkg/common/cachekey/user.go

@@ -0,0 +1,14 @@
+package cachekey
+
+const (
+	userInfoKey             = "USER_INFO:"
+	userGlobalRecvMsgOptKey = "USER_GLOBAL_RECV_MSG_OPT_KEY:"
+)
+
+func GetUserInfoKey(userID string) string {
+	return userInfoKey + userID
+}
+
+func GetUserGlobalRecvMsgOptKey(userID string) string {
+	return userGlobalRecvMsgOptKey + userID
+}