1 files changed, 6 insertions, 0 deletions
diff --git a/backend/notif.py b/backend/notif.py
index 59c6ec1..d2e1f2e 100644
--- a/backend/notif.py
+++ b/backend/notif.py
@@ -25,6 +25,12 @@ CREATE TABLE IF NOT EXISTS subscriptions (
 
 # --- subscribe
 def subscribe(data: PushSubscriptionData):
+    cursor.execute("SELECT * FROM subscriptions WHERE endpoint = ?", (data.endpoint,))
+    row = cursor.fetchall()
+
+    if len(row) > 0:
+        return data.endpoint
+
     cursor.execute("""
     INSERT INTO subscriptions (endpoint, keys_p256dh, keys_auth)
     VALUES (?, ?, ?)""", (data.endpoint, data.keys["p256dh"], data.keys["auth"]))