From 397d50f65130b2a8c22aced92bca46582df784f8 Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:35:54 +0800
Subject: [PATCH 1/8] fix: ignore non-object websocket messages

---
 lighter/ws_client.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lighter/ws_client.py b/lighter/ws_client.py
index 14abdf5..5ed2929 100644
--- a/lighter/ws_client.py
+++ b/lighter/ws_client.py
@@ -42,6 +42,9 @@ def on_message(self, ws, message):
         if isinstance(message, str):
             message = json.loads(message)
 
+        if not isinstance(message, dict):
+            return
+
         message_type = message.get("type")
 
         if message_type == "connected":
@@ -61,7 +64,12 @@ def on_message(self, ws, message):
             self.handle_unhandled_message(message)
 
     async def on_message_async(self, ws, message):
-        message = json.loads(message)
+        if isinstance(message, str):
+            message = json.loads(message)
+
+        if not isinstance(message, dict):
+            return
+
         message_type = message.get("type")
 
         if message_type == "connected":

From a2f002c61757b40e95047e9ccbcb230a61316795 Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:36:00 +0800
Subject: [PATCH 2/8] test: cover non-object websocket messages

---
 test/test_ws_client.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 test/test_ws_client.py

diff --git a/test/test_ws_client.py b/test/test_ws_client.py
new file mode 100644
index 0000000..8d49d21
--- /dev/null
+++ b/test/test_ws_client.py
@@ -0,0 +1,21 @@
+import unittest
+
+from lighter.ws_client import WsClient
+
+
+class TestWsClient(unittest.IsolatedAsyncioTestCase):
+    def setUp(self):
+        self.client = WsClient(order_book_ids=[0])
+
+    def test_sync_ignores_json_string_message(self):
+        self.client.on_message(None, '"heartbeat"')
+
+    async def test_async_ignores_json_string_message(self):
+        await self.client.on_message_async(None, '"heartbeat"')
+
+    async def test_async_ignores_decoded_non_object_message(self):
+        await self.client.on_message_async(None, ["heartbeat"])
+
+
+if __name__ == "__main__":
+    unittest.main()

From 02ec39dd86e806668b476ad348f5c32a80c08924 Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:36:07 +0800
Subject: [PATCH 3/8] x

---
 x | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 x

diff --git a/x b/x
new file mode 100644
index 0000000..c1b0730
--- /dev/null
+++ b/x
@@ -0,0 +1 @@
+x
\ No newline at end of file

From e79150787906c19c8396fe7cc59bc82449f675dc Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:36:14 +0800
Subject: [PATCH 4/8] chore: remove stray file

---
 x | 1 -
 1 file changed, 1 deletion(-)
 delete mode 100644 x

diff --git a/x b/x
deleted file mode 100644
index c1b0730..0000000
--- a/x
+++ /dev/null
@@ -1 +0,0 @@
-x
\ No newline at end of file

From 6de86da7eb782ac19e477e67ccd6b5cc63ee6f67 Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:36:21 +0800
Subject: [PATCH 5/8] noop

---
 .github/placeholder-never | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 .github/placeholder-never

diff --git a/.github/placeholder-never b/.github/placeholder-never
new file mode 100644
index 0000000..e69de29

From d0062435312eeaedcbc8ef28629da8d50697be70 Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:36:29 +0800
Subject: [PATCH 6/8] chore: remove placeholder

---
 .github/placeholder-never | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 .github/placeholder-never

diff --git a/.github/placeholder-never b/.github/placeholder-never
deleted file mode 100644
index e69de29..0000000

From e8d7b075d03803596eca61a73bc6caff54169f28 Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:36:34 +0800
Subject: [PATCH 7/8] none

---
 .github/none | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 .github/none

diff --git a/.github/none b/.github/none
new file mode 100644
index 0000000..c86c3f3
--- /dev/null
+++ b/.github/none
@@ -0,0 +1 @@
+none
\ No newline at end of file

From 8ad4c729f8852eb699b53de56419890ed317f6ae Mon Sep 17 00:00:00 2001
From: Chu Khac Minh <87845619+Minh3132@users.noreply.github.com>
Date: Wed, 16 Sep 2026 15:36:43 +0800
Subject: [PATCH 8/8] chore: remove temporary file

---
 .github/none | 1 -
 1 file changed, 1 deletion(-)
 delete mode 100644 .github/none

diff --git a/.github/none b/.github/none
deleted file mode 100644
index c86c3f3..0000000
--- a/.github/none
+++ /dev/null
@@ -1 +0,0 @@
-none
\ No newline at end of file