diff --git a/api/db/logs.py b/api/db/logs.py
index caf2baf..9e6a9ea 100644
--- a/api/db/logs.py
+++ b/api/db/logs.py
@@ -16,8 +16,12 @@ UA_SIMPLIFY = {
     'AppleWebKit/537.36 (KHTML, like Gecko)': 'K',
 }
 
-async def _get_mongo(collection_name: str):
-    return AsyncIOMotorClient(os.getenv('MONGO_URI'))['nova-core'][collection_name]
+## MONGODB Setup
+
+conn = AsyncIOMotorClient(os.getenv('MONGO_URI'))
+
+async def _get_collection(collection_name: str):
+    return conn['nova-core'][collection_name]
 
 async def replacer(text: str, dict_: dict) -> str:
     for k, v in dict_.items():
@@ -25,7 +29,7 @@ async def replacer(text: str, dict_: dict) -> str:
     return text
 
 async def log_api_request(user: dict, incoming_request, target_url: str):
-    db = await _get_mongo('logs')
+    db = await _get_collection('logs')
     payload = {}
 
     try:
@@ -58,19 +62,19 @@ async def log_api_request(user: dict, incoming_request, target_url: str):
     return log_item
 
 async def by_id(log_id: str):
-    db = await _get_mongo('logs')
+    db = await _get_collection('logs')
     return await db.find_one({'_id': log_id})
 
 async def by_user_id(user_id: str):
-    db = await _get_mongo('logs')
+    db = await _get_collection('logs')
     return await db.find({'user_id': user_id})
 
 async def delete_by_id(log_id: str):
-    db = await _get_mongo('logs')
+    db = await _get_collection('logs')
     return await db.delete_one({'_id': log_id})
 
 async def delete_by_user_id(user_id: str):
-    db = await _get_mongo('logs')
+    db = await _get_collection('logs')
     return await db.delete_many({'user_id': user_id})
 
 if __name__ == '__main__':
diff --git a/api/db/stats.py b/api/db/stats.py
index 795b09f..d20ee4a 100644
--- a/api/db/stats.py
+++ b/api/db/stats.py
@@ -8,40 +8,46 @@ from motor.motor_asyncio import AsyncIOMotorClient
 
 load_dotenv()
 
-async def _get_mongo(collection_name: str):
-    return AsyncIOMotorClient(os.getenv('MONGO_URI'))['nova-core'][collection_name]
+## MONGODB Setup
+
+conn = AsyncIOMotorClient(os.getenv('MONGO_URI'))
+
+async def _get_collection(collection_name: str):
+    return conn['nova-core'][collection_name]
+
+## Statistics
 
 async def add_date():
     date = datetime.datetime.now(pytz.timezone('GMT')).strftime('%Y.%m.%d')
     year, month, day = date.split('.')
 
-    db = await _get_mongo('stats')
+    db = await _get_collection('stats')
     await db.update_one({}, {'$inc': {f'dates.{year}.{month}.{day}': 1}}, upsert=True)
 
 async def add_ip_address(ip_address: str):
     ip_address = ip_address.replace('.', '_')
-    db = await _get_mongo('stats')
+    db = await _get_collection('stats')
     await db.update_one({}, {'$inc': {f'ips.{ip_address}': 1}}, upsert=True)
 
 async def add_target(url: str):
-    db = await _get_mongo('stats')
+    db = await _get_collection('stats')
     await db.update_one({}, {'$inc': {f'targets.{url}': 1}}, upsert=True)
 
 async def add_tokens(tokens: int, model: str):
-    db = await _get_mongo('stats')
+    db = await _get_collection('stats')
     await db.update_one({}, {'$inc': {f'tokens.{model}': tokens}}, upsert=True)
 
 async def add_model(model: str):
-    db = await _get_mongo('stats')
+    db = await _get_collection('stats')
     await db.update_one({}, {'$inc': {f'models.{model}': 1}}, upsert=True)
 
 async def add_path(path: str):
     path = path.replace('/', '_')
-    db = await _get_mongo('stats')
+    db = await _get_collection('stats')
     await db.update_one({}, {'$inc': {f'paths.{path}': 1}}, upsert=True)
 
 async def get_value(obj_filter):
-    db = await _get_mongo('stats')
+    db = await _get_collection('stats')
     return await db.find_one({obj_filter})
 
 if __name__ == '__main__':
diff --git a/api/db/users.py b/api/db/users.py
index 580364a..8bafb21 100644
--- a/api/db/users.py
+++ b/api/db/users.py
@@ -12,8 +12,12 @@ load_dotenv()
 with open('config/credits.yml', encoding='utf8') as f:
     credits_config = yaml.safe_load(f)
 
-async def _get_mongo(collection_name: str):
-    return AsyncIOMotorClient(os.getenv('MONGO_URI'))['nova-core'][collection_name]
+## MONGODB Setup
+
+conn = AsyncIOMotorClient(os.getenv('MONGO_URI'))
+
+async def _get_collection(collection_name: str):
+    return conn['nova-core'][collection_name]
 
 async def create(discord_id: str='') -> dict:
     """Adds a new user to the MongoDB collection."""
@@ -41,33 +45,33 @@ async def create(discord_id: str='') -> dict:
         }
     }
 
-    db = await _get_mongo('users')
+    db = await _get_collection('users')
     await db.insert_one(new_user)
     user = await db.find_one({'api_key': new_api_key})	
     return user
 
 async def by_id(user_id: str):
-    db = await _get_mongo('users')
+    db = await _get_collection('users')
     return await db.find_one({'_id': user_id})
 
 async def by_discord_id(discord_id: str):
-    db = await _get_mongo('users')
+    db = await _get_collection('users')
     return await db.find_one({'auth.discord': str(int(discord_id))})
 
 async def by_api_key(key: str):
-    db = await _get_mongo('users')
+    db = await _get_collection('users')
     return await db.find_one({'api_key': key})
 
 async def update_by_id(user_id: str, update):
-    db = await _get_mongo('users')
+    db = await _get_collection('users')
     return await db.update_one({'_id': user_id}, update)
 
 async def update_by_filter(obj_filter, update):
-    db = await _get_mongo('users')
+    db = await _get_collection('users')
     return await db.update_one(obj_filter, update)
 
 async def delete(user_id: str):
-    db = await _get_mongo('users')
+    db = await _get_collection('users')
     await db.delete_one({'_id': user_id})
 
 async def demo():
diff --git a/api/helpers/chat.py b/api/helpers/chat.py
index 9cd35aa..6bca378 100644
--- a/api/helpers/chat.py
+++ b/api/helpers/chat.py
@@ -20,8 +20,16 @@ async def create_chat_id() -> str:
     return f'chatcmpl-{chat_id}'
 
 async def create_chat_chunk(chat_id: str, model: str, content=None) -> dict:
-    """Creates a new chat chunk"""
+    """Creates the chunk for streaming chat.
 
+    Args:
+        chat_id (str): _description_
+        model (str): _description_
+        content (_type_, optional): _description_. Defaults to None.
+
+    Returns:
+        dict: _description_
+    """
     content = content or {}
 
     delta = {}
@@ -53,13 +61,4 @@ async def create_chat_chunk(chat_id: str, model: str, content=None) -> dict:
         ],
     }
 
-    return f'data: {json.dumps(chunk)}\n\n'
-
-if __name__ == '__main__':
-    demo_chat_id = asyncio.run(create_chat_id())
-    print(demo_chat_id)
-    print(asyncio.run(create_chat_chunk(
-        model='gpt-4',
-        content='Hello',
-        chat_id=demo_chat_id,
-    )))
+    return f'data: {json.dumps(chunk)}\n\n'
\ No newline at end of file
diff --git a/api/helpers/tokens.py b/api/helpers/tokens.py
index 10b3dd0..f39d15a 100644
--- a/api/helpers/tokens.py
+++ b/api/helpers/tokens.py
@@ -1,7 +1,18 @@
 import tiktoken
 
 async def count_for_messages(messages: list, model: str='gpt-3.5-turbo-0613') -> int:
-    """Return the number of tokens used by a list of messages."""
+    """Return the number of tokens used by a list of messages
+
+    Args:
+        messages (list): _description_
+        model (str, optional): _description_. Defaults to 'gpt-3.5-turbo-0613'.
+
+    Raises:
+        NotImplementedError: _description_
+
+    Returns:
+        int: _description_
+    """
 
     try:
         encoding = tiktoken.encoding_for_model(model)
diff --git a/api/load_balancing.py b/api/load_balancing.py
index cfcfe72..84adb8a 100644
--- a/api/load_balancing.py
+++ b/api/load_balancing.py
@@ -39,7 +39,6 @@ async def balance_organic_request(request: dict) -> dict:
     """Load balnace to non-chat completion request between other "organic" providers which respond in the desired format already.
 Organic providers are used for non-chat completions, such as moderation and other paths.    
 """
-
     providers_available = []
 
     if not request.get('headers'):
diff --git a/api/provider_auth.py b/api/provider_auth.py
index bc499d7..a6aaed3 100644
--- a/api/provider_auth.py
+++ b/api/provider_auth.py
@@ -2,12 +2,15 @@
 
 import asyncio
 
-async def invalidate_key(provider_and_key: str) -> none:
-    """Invalidates a key stored in the secret/ folder by storing it in the associated .invalid.txt file.
-The schmea in which <provider_and_key> should be passed is:
-<provider_name><key>, e.g.
-closed4>sk-...
-"""
+async def invalidate_key(provider_and_key: str) -> None:
+    """
+
+    Invalidates a key stored in the secret/ folder by storing it in the associated .invalid.txt file.
+    The schmea in which <provider_and_key> should be passed is:
+    <provider_name><key>, e.g.
+    closed4>sk-...
+
+    """
 
     if not provider_and_key:
         return
diff --git a/api/streaming.py b/api/streaming.py
index 295b06b..a1c7402 100644
--- a/api/streaming.py
+++ b/api/streaming.py
@@ -96,12 +96,11 @@ async def stream(
             webhook = dhooks.Webhook(os.getenv('DISCORD_WEBHOOK__API_ISSUE'))
             webhook.send(content=f'API Issue: **`{exc}`**\nhttps://i.imgflip.com/7uv122.jpg')
 
-            error = await errors.yield_error(
+            yield await errors.yield_error(
                 500,
                 'Sorry, the API has no working keys anymore.',
                 'The admins have been messaged automatically.'
             )
-            yield error 
             return
 
         for k, v in target_request.get('headers', {}).items():
@@ -180,12 +179,11 @@ async def stream(
 
                         except Exception as exc:
                             if 'Connection closed' in str(exc):
-                                error = await errors.yield_error(
+                                yield await errors.yield_error(
                                     500,
                                     'Sorry, there was an issue with the connection.',
                                     'Please first check if the issue on your end. If this error repeats, please don\'t heistate to contact the staff!.'
                                 )
-                                yield error 
                                 return
 
                     break
diff --git a/api/transfer.py b/api/transfer.py
index 23011f9..c7931c3 100644
--- a/api/transfer.py
+++ b/api/transfer.py
@@ -26,8 +26,7 @@ async def handle(incoming_request):
 
     # METHOD
     if incoming_request.method not in ['GET', 'POST', 'PUT', 'DELETE', 'PATCH']:
-        error = await errors.error(405, f'Method "{incoming_request.method}" is not allowed.', 'Change the request method to the correct one.')
-        return error
+        return await errors.error(405, f'Method "{incoming_request.method}" is not allowed.', 'Change the request method to the correct one.')
 
     # PAYLOAD
     try:
@@ -35,42 +34,37 @@ async def handle(incoming_request):
     except json.decoder.JSONDecodeError:
         payload = {}
 
-    # TOKENS
+    # Tokenise w/ tiktoken
     try:
         input_tokens = await tokens.count_for_messages(payload['messages'])
     except (KeyError, TypeError):
         input_tokens = 0
 
-    # AUTH
+    # Check user auth
     received_key = incoming_request.headers.get('Authorization')
 
     if not received_key:
-        error = await errors.error(401, 'No NovaAI API key given!', 'Add "Authorization: Bearer nv-..." to your request headers.')
-        return error
+        return await errors.error(401, 'No NovaAI API key given!', 'Add "Authorization: Bearer nv-..." to your request headers.')
 
     if received_key.startswith('Bearer '):
         received_key = received_key.split('Bearer ')[1]
 
-    # USER
     user = await users.by_api_key(received_key.strip())
 
     if not user:
-        error = await errors.error(401, 'Invalid NovaAI API key!', 'Create a new NovaOSS API key.')
-        return error
+        return await errors.error(401, 'Invalid NovaAI API key!', 'Create a new NovaOSS API key.')
 
     ban_reason = user['status']['ban_reason']
     if ban_reason:
-        error = await errors.error(403, f'Your NovaAI account has been banned. Reason: "{ban_reason}".', 'Contact the staff for an appeal.')
-        return error
+        return await errors.error(403, f'Your NovaAI account has been banned. Reason: "{ban_reason}".', 'Contact the staff for an appeal.')
 
     if not user['status']['active']:
-        error = await errors.error(418, 'Your NovaAI account is not active (paused).', 'Simply re-activate your account using a Discord command or the web panel.')
-        return error
+        return await errors.error(418, 'Your NovaAI account is not active (paused).', 'Simply re-activate your account using a Discord command or the web panel.')
 
     if '/models' in path:
         return fastapi.responses.JSONResponse(content=models_list)
 
-    # COST
+    # Calculate cost of tokens & check for nsfw prompts
     costs = credits_config['costs']
     cost = costs['other']
 
@@ -94,17 +88,17 @@ async def handle(incoming_request):
                 policy_violation = await moderation.is_policy_violated(inp)
 
     if policy_violation:
-        error = await errors.error(400, f'The request contains content which violates this model\'s policies for "{policy_violation}".', 'We currently don\'t support any NSFW models.')
-        return error
+        return await errors.error(400, f'The request contains content which violates this model\'s policies for "{policy_violation}".', 'We currently don\'t support any NSFW models.')
+
 
     role_cost_multiplier = credits_config['bonuses'].get(user['role'], 1)
     cost = round(cost * role_cost_multiplier)
 
     if user['credits'] < cost:
-        error = await errors.error(429, 'Not enough credits.', 'Wait or earn more credits. Learn more on our website or Discord server.')
-        return error
+        return await errors.error(429, 'Not enough credits.', 'Wait or earn more credits. Learn more on our website or Discord server.')
 
-    # READY
+
+    # Send the completion request
 
     if 'chat/completions' in path and not payload.get('stream') is True:
         payload['stream'] = False