Handling message checks

messaging/messaging.py

@@ -44,10 +44,12 @@ class MQueue:
                 ts = time.time_ns()
                 since, data = entry
                 latency = (ts - int(data[b'timestamp'].decode('utf8'))) / 1000 / 1000
-                message = json.loads(data[b'data'].decode('utf8'))
-                print(f"{latency:.2f}ms | msg { since }: { message }")
-                yield (since, message)
-
+                if b'data' in data:
+                    message = json.loads(data[b'data'].decode('utf8'))
+                    print(f"{latency:.2f}ms | msg { since }: { message }")
+                    yield (since, message)
+                else:
+                    print(f"Could not find payload data in msg { data }")
 
     # Group listen for queueing communication patterns on message queues
     #