get bkc api key fro any incoming queue

building_dao/settings.py

@@ -12,7 +12,7 @@ class Settings:
 
         building_center_info = registry.get_info("building-knowledge-information-center")
 
-        self.api_key = building_center_info["api_in"][registry.node_id]["key"]
+        self.api_key = next(iter(building_center_info["api_in"].values()))["key"]
         self.base_url = "http://{}:{}/api/buildings".format(
             building_center_info["service_addr"], building_center_info["service_port"]
         )