added env var loading of user_id

code/main.py

@@ -14,13 +14,8 @@ from database import connect
 # load default values
 config = ConfigParser()
 config.read(Path(__file__).parent / 'defaults.ini')
+USER_ID = int(config.get('main', 'user_id'))
 REPLICATES = int(config.get('main', 'replicates'))
-QUEUE_FLUSH_INTERVAL_SECONDS = float(
-    config.get(
-        'main',
-        'queue_flush_interval_seconds'
-    )
-)
 SCHEDULE = config.get('cron', 'schedule')
 TZ = config.get('cron', 'tz')
 
@@ -93,14 +88,8 @@ if __name__ == '__main__':
     # setup
     initialise_app()
     data_queue: Queue = Queue()
-    user_id = int(os.getenv('USER_ID', default=0))
+    user_id = int(os.getenv('USER_ID', default=USER_ID))
     replicates = int(os.getenv('REPLICATES', default=REPLICATES))
-    queue_flush_interval = float(
-        os.getenv(
-            'QUEUE_FLUSH_INTERVAL_SECONDS',
-            default=QUEUE_FLUSH_INTERVAL_SECONDS
-        )
-    )
     schedule = os.getenv(
         key='SCHEDULE',
         default=SCHEDULE