caching bot id (web request is done only once)

Signed-off-by: klux2 <k.lux.gm@gmail.com>

HSMensaW_botA.py

@@ -46,6 +46,8 @@ essen = []
 var = True
 datum = None
 
+botID = -1
+
 
 class HSMensaW(telepot.aio.helper.ChatHandler):
     @staticmethod
@@ -233,11 +235,13 @@ async def get_essen(only_today: bool) -> None:
 
 
 def get_bot_id() -> int:
+    global botID
+    if botID == -1:
         api_url = "https://api.telegram.org/bot" + telegram_bot_token + "/getMe"
         with urllib.request.urlopen(api_url) as response:
             data = json.load(response)
-    bot_id = data["result"]["id"]
-    return bot_id
+        botID = data["result"]["id"]
+    return botID
 
 
 def get_chat_name(msg: dict) -> str: