admin_basic

Change-Id: I16f1cd5785730b22e6e1e3fb4905f546ef0b555d
diff --git a/src/main/java/com/example/g8backend/service/AdminService.java b/src/main/java/com/example/g8backend/service/AdminService.java
new file mode 100644
index 0000000..1f84eec
--- /dev/null
+++ b/src/main/java/com/example/g8backend/service/AdminService.java
@@ -0,0 +1,5 @@
+package com.example.g8backend.service;
+
+public interface AdminService {
+    boolean grantVip(Long targetUserId);
+}
\ No newline at end of file