add auth

app.py

@@ -192,5 +192,11 @@ iface = gr.Interface(
 )
 
 valid_users = [("admin", "password123"), ("user1", "pass456")]
-
-iface.launch()
+user_db = {"admin": "admin", "foo": "bar"}
+# iface.launch()
+if __name__ == "__main__":
+    iface.launch(
+        enable_queue=False,
+        auth=lambda u, p: user_db.get(u) == p,
+        auth_message="This is a welcome message",
+    )