fix more

chatbot_ui/arch_util.py

@@ -0,0 +1,20 @@
+import json
+
+
+ARCH_STATE_HEADER = "x-arch-state"
+
+
+def get_arch_messages(response_json):
+    arch_messages = []
+    if response_json and "metadata" in response_json:
+        # load arch_state from metadata
+        arch_state_str = response_json.get("metadata", {}).get(ARCH_STATE_HEADER, "{}")
+        # parse arch_state into json object
+        arch_state = json.loads(arch_state_str)
+        # load messages from arch_state
+        arch_messages_str = arch_state.get("messages", "[]")
+        # parse messages into json object
+        arch_messages = json.loads(arch_messages_str)
+        # append messages from arch gateway to history
+        return arch_messages
+    return []