please

rpi/controllers/mqtt_forwarder.py

@@ -26,7 +26,7 @@ class MQTTForwarder:
             print(f"An error occurred while forwarding from {src_topic} to {dst_topic}: {e}")
 
     def __wrap_data(self, msg : str):
-        print(msg)
+        print(repr(msg))
         result = {}
         data = json.loads(msg)
         result["timestamp"] = int(time.time())
@@ -34,4 +34,4 @@ class MQTTForwarder:
         result["data"] = {}
         for keys in data:
             result["data"][keys] = data[keys]
-        return result
+        return json.dumps(result)

rpi/services/mqtt_service.py

@@ -65,7 +65,7 @@ class MQTTService:
     def publish(self, topic: str, data: str, qos: int = 0):
         try:
             self.connect()
-            result = self.client.publish(topic, json.dumps(data), qos=qos)
+            result = self.client.publish(topic, data, qos=qos)
             result.wait_for_publish()
         except Exception as e:
             print(f"An error occurred while publishing on {topic} on {self.address} : {e}")