Add path to backend preset

src/access.py

@@ -8,28 +8,25 @@ from io import BytesIO
 
 class Access:
     """Class accessing our platform"""
-
-    PENDING = 1
-    PROCESS = 2
-    GENERATE = 3
-    FINISH = 4
-    ERROR = 5
-
-    url = None
-    username = None
-    password = None
-
-    token = None
-    refresh = None
-    refresh_time = None
-    headers = None
-    refreshing = Event()
-
-    def __init__(self, url):
+    def __init__(self, url=None):
         """
         :param url: str, url received from queue message, if field apiURL exists
                         else None
         """
+        self.PENDING = 1
+        self.PROCESS = 2
+        self.GENERATE = 3
+        self.FINISH = 4
+        self.ERROR = 5
+
+        self.username = None
+        self.password = None
+
+        self.token = None
+        self.refresh = None
+        self.refresh_time = None
+        self.headers = None
+        self.refreshing = Event()
 
         self.set_credentials(url)
         self.get_token()