upgraded script to close connection to DB od error

.env.exampe

@@ -1,5 +1,7 @@
-INVERTER_HOST=10.1.20.230
-INVERTER_UNIQUE_TAG=Potec180_inverter_1
+INVERTER_HOST=1.2.3.4
+INVERTER_UNIQUE_TAG=Unique_inverter_identifier
 MONGODB_HOST=mongodbIP
 MONGODB_PORT=27017
-MONGODB_DB=DB
+MONGODB_DB=DB
+MONGODB_USER=mongodb_username
+MONGODB_PASS=mongodb_pass

src/main.py

@@ -1,8 +1,6 @@
-import goodwe, asyncio, time, json
+import goodwe, asyncio, time, json, motor, motor.motor_asyncio
 
-import motor.motor_asyncio
 from configuration import get_config
-import motor
 
 config = get_config()
 
@@ -14,24 +12,16 @@ async def read_inverter(inverter):
     return await inverter.read_runtime_data()
 
 
-async def get_mongodb_collection(host: str, port: str, db: str, username: str, password: str):
-     client = motor.motor_asyncio.AsyncIOMotorClient(f"mongodb://{username}:{password}@{host}:{port}/")
-     return client[db]["inverters_data"]
-
-
-
-
-
-
-
-
-
+async def get_mongodb_client(host: str, port: str, username: str, password: str):
+     return motor.motor_asyncio.AsyncIOMotorClient(f"mongodb://{username}:{password}@{host}:{port}/")
 
 
 async def main():
+  try:
     print(f"Connecting to inverter: {config.inverter_host}")
     connected_inverter = await connect_to_inverter(ip=config.inverter_host)
-    db_collection = await get_mongodb_collection(host=config.mongodb_host, port=config.mongodb_port, db=config.mongodb_db, username=config.mongodb_user, password=config.mongodb_pass)
+    mongodb_client = await get_mongodb_client(host=config.mongodb_host, port=config.mongodb_port, username=config.mongodb_user, password=config.mongodb_pass)
+    db_collection = mongodb_client[config.mongodb_db]["inverters_data"]
     while True:
         print("")
         print("------------------------------------------------")
@@ -40,7 +30,8 @@ async def main():
         print(json.dumps(data, default=str))
         inserted = await db_collection.insert_one(data)
         print(f"data saved with id: {inserted.inserted_id}")
-
+  except:
+      mongodb_client.close()
 
 while True:
     try: