未読の通知がある場合アイコンを表示するように

src/api/endpoints/notifications/get_unread_count.ts

@@ -0,0 +1,23 @@
+/**
+ * Module dependencies
+ */
+import Notification from '../../models/notification';
+
+/**
+ * Get count of unread notifications
+ *
+ * @param {any} params
+ * @param {any} user
+ * @return {Promise<any>}
+ */
+module.exports = (params, user) => new Promise(async (res, rej) => {
+	const count = await Notification
+		.count({
+			notifiee_id: user._id,
+			is_read: false
+		});
+
+	res({
+		count: count
+	});
+});