diff --git a/src/repository/mod.rs b/src/repository/mod.rs
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..10cdf5de42d50b7930b9b9a137be3a871588e476 100644
--- a/src/repository/mod.rs
+++ b/src/repository/mod.rs
@@ -0,0 +1 @@
+pub mod notification;
diff --git a/src/repository/notification.rs b/src/repository/notification.rs
new file mode 100644
index 0000000000000000000000000000000000000000..c3acb0e8ffe221f49103423e60ad562a05cb9572
--- /dev/null
+++ b/src/repository/notification.rs
@@ -0,0 +1,15 @@
+use std::sync::RwLock;
+
+use lazy_static::lazy_static;
+
+use crate::model::notification::Notification;
+
+// Singleton of Database
+lazy_static! {
+    static ref NOTIFICATIONS: RwLock<Vec<Notification>> = RwLock::new(vec![]);
+}
+
+pub struct NotificationRepository;
+
+impl NotificationRepository {
+}