perf: build debug log messages lazily so disabled debug logs cost nothing (#27834)

GLOBAL_LOG_LEVEL defaults to INFO, so every log.debug(...) in the backend is discarded, but the message is built first: 187 call sites interpolate their payload into an f-string before the logging call runs, so the work happens on every request and the result is thrown away. The worst one sits in process_chat_payload and stringifies the whole request body, full conversation history included, once per chat completion.

That one line with DEBUG disabled, CPython 3.12:

| conversation | payload | before   | after   |
| ------------ | ------- | -------- | ------- |
| 4 messages   | 1.2 kB  | 3.4 us   | 0.07 us |
| 20 messages  | 17 kB   | 24.8 us  | 0.07 us |
| 60 messages  | 123 kB  | 216.6 us | 0.07 us |

The lazy form log.debug('form_data: %s', form_data) hands the payload to record.getMessage(), which the InterceptHandler only reaches once a record has passed the level check. With DEBUG enabled the emitted lines are byte-identical, f'{x=}' sites included: those map to %r. MistralLoader._debug_log callers get the same treatment, since that wrapper already forwards *args.

backend/open_webui/utils/access_control/files.py

@@ -34,7 +34,7 @@ async def has_access_to_file(
     file.user_id == user.id separately before calling this.
     """
     file = await Files.get_file_by_id(file_id, db=db)
-    log.debug(f'Checking if user has {access_type} access to file')
+    log.debug('Checking if user has %s access to file', access_type)
     if not file:
         return False
 

backend/open_webui/utils/audit.py

@@ -222,7 +222,7 @@ class AuditLoggingMiddleware:
             user = await get_current_user(request, None, None, get_http_authorization_cred(auth_header))
             return user
         except Exception as e:
-            logger.debug(f'Failed to get authenticated user: {str(e)}')
+            logger.debug('Failed to get authenticated user: {}', e)
 
         return None
 

backend/open_webui/utils/automations.py

@@ -667,7 +667,7 @@ async def _check_calendar_alerts(app) -> None:
                 CalendarEventUpdateForm(meta={'alerted_at': now_ns}),
             )
         except Exception:
-            log.debug(f'Failed to mark event {event.id} as alerted', exc_info=True)
+            log.debug('Failed to mark event %s as alerted', event.id, exc_info=True)
 
         # Send target notification if user has one configured
         try:
@@ -687,7 +687,7 @@ async def _check_calendar_alerts(app) -> None:
                 message=event.title,
             )
         except Exception:
-            log.debug(f'Failed to send notification for calendar alert {event.id}', exc_info=True)
+            log.debug('Failed to send notification for calendar alert %s', event.id, exc_info=True)
 
 
 async def _record_run(

backend/open_webui/utils/chat.py

@@ -115,7 +115,7 @@ async def generate_direct_chat_completion(
                             else:
                                 yield f'data: {data}\n\n'
                 except Exception as e:
-                    log.debug(f'Error in event generator: {e}')
+                    log.debug('Error in event generator: %s', e)
                     pass
 
             # Define a background task to run the event generator
@@ -155,7 +155,7 @@ async def generate_chat_completion(
     bypass_filter: bool = False,
     bypass_system_prompt: bool = False,
 ):
-    log.debug(f'generate_chat_completion: {form_data}')
+    log.debug('generate_chat_completion: %s', form_data)
     if BYPASS_MODEL_ACCESS_CONTROL:
         bypass_filter = True
 
@@ -184,7 +184,7 @@ async def generate_chat_completion(
             **dict(request.app.state.MODELS.items()),
             request.state.model['id']: request.state.model,
         }
-        log.debug(f'direct connection to model: {request.state.model["id"]}')
+        log.debug('direct connection to model: %s', request.state.model['id'])
     else:
         models = request.app.state.MODELS
 

backend/open_webui/utils/filter.py

@@ -186,7 +186,7 @@ async def process_filter_function(
 
         form_data = await run_filter_handler(handler, params)
     except Exception as e:
-        log.debug(f'Error in {filter_type} handler {filter_id}: {e}')
+        log.debug('Error in %s handler %s: %s', filter_type, filter_id, e)
         raise e
 
     return form_data, valves_by_id, skip_files

backend/open_webui/utils/images/comfyui.py

@@ -17,7 +17,7 @@ default_headers = {'User-Agent': 'Mozilla/5.0'}
 async def queue_prompt(prompt, client_id, base_url, api_key):
     log.info('queue_prompt')
     p = {'prompt': prompt, 'client_id': client_id}
-    log.debug(f'queue_prompt data: {p}')
+    log.debug('queue_prompt data: %s', p)
     try:
         session = await get_session()
         async with session.post(
@@ -202,7 +202,7 @@ async def comfyui_create_image(model: str, payload: ComfyUICreateImageForm, clie
         ) as ws:
             log.info('WebSocket connection established.')
             log.info('Sending workflow to WebSocket server.')
-            log.debug(f'Workflow: {workflow}')
+            log.debug('Workflow: %s', workflow)
             images = await _ws_get_images(ws, workflow, client_id, base_url, api_key)
     except aiohttp.WSServerHandshakeError as e:
         log.exception(f'Failed to connect to WebSocket server: {e}')
@@ -243,7 +243,7 @@ async def comfyui_edit_image(model: str, payload: ComfyUIEditImageForm, client_i
         ) as ws:
             log.info('WebSocket connection established.')
             log.info('Sending workflow to WebSocket server.')
-            log.debug(f'Workflow: {workflow}')
+            log.debug('Workflow: %s', workflow)
             images = await _ws_get_images(ws, workflow, client_id, base_url, api_key)
     except aiohttp.WSServerHandshakeError as e:
         log.exception(f'Failed to connect to WebSocket server: {e}')

backend/open_webui/utils/memory.py

@@ -457,7 +457,7 @@ async def review_memory_after_turn(
         try:
             done_task.result()
         except Exception as e:
-            log.debug(f'Memory review failed: {e}')
+            log.debug('Memory review failed: %s', e)
 
     task.add_done_callback(log_failure)
 

backend/open_webui/utils/middleware.py

@@ -1210,9 +1210,9 @@ async def chat_completion_tools_handler(
 
     try:
         response = await generate_chat_completion(request, form_data=payload, user=user)
-        log.debug(f'{response=}')
+        log.debug('response=%r', response)
         content = await get_content_from_response(response)
-        log.debug(f'{content=}')
+        log.debug('content=%r', content)
 
         if not content:
             return body, {}
@@ -1227,7 +1227,7 @@ async def chat_completion_tools_handler(
             async def tool_call_handler(tool_call):
                 nonlocal skip_files
 
-                log.debug(f'{tool_call=}')
+                log.debug('tool_call=%r', tool_call)
 
                 tool_function_name = tool_call.get('name', None)
                 if tool_function_name not in tools:
@@ -1341,13 +1341,13 @@ async def chat_completion_tools_handler(
                 await tool_call_handler(result)
 
         except Exception as e:
-            log.debug(f'Error: {e}')
+            log.debug('Error: %s', e)
             content = None
     except Exception as e:
-        log.debug(f'Error: {e}')
+        log.debug('Error: %s', e)
         content = None
 
-    log.debug(f'tool_contexts: {sources}')
+    log.debug('tool_contexts: %s', sources)
 
     if skip_files and 'files' in body.get('metadata', {}):
         del body['metadata']['files']
@@ -1912,7 +1912,7 @@ async def chat_completion_files_handler(
         except Exception as e:
             log.exception(e)
 
-        log.debug(f'rag_contexts:sources: {sources}')
+        log.debug('rag_contexts:sources: %s', sources)
 
         unique_ids = set()
         for source in sources or []:
@@ -2028,7 +2028,7 @@ async def convert_url_images_to_base64(form_data, user=None):
                 else:
                     new_content.append(item)
             except Exception as e:
-                log.debug(f'Error converting image URL to base64: {e}')
+                log.debug('Error converting image URL to base64: %s', e)
                 new_content.append(item)
 
         message['content'] = new_content
@@ -2286,7 +2286,7 @@ async def process_chat_payload(request, form_data, user, metadata, model):
     model_system_prompt = (form_data.get('params') or {}).get('system')
 
     form_data = apply_params_to_form_data(form_data, model)
-    log.debug(f'form_data: {form_data}')
+    log.debug('form_data: %s', form_data)
 
     # Guided regeneration: extract before it reaches the LLM provider
     regeneration_prompt = form_data.pop('regeneration_prompt', None)
@@ -2725,8 +2725,8 @@ async def process_chat_payload(request, form_data, user, metadata, model):
         # Client side tools
         direct_tool_servers = metadata.get('tool_servers', None)
 
-        log.debug(f'{tool_ids=}')
-        log.debug(f'{direct_tool_servers=}')
+        log.debug('tool_ids=%r', tool_ids)
+        log.debug('direct_tool_servers=%r', direct_tool_servers)
 
         tools_dict = {}
 
@@ -3498,7 +3498,7 @@ async def outlet_filter_handler(ctx):
         try:
             outlet_data = await process_pipeline_outlet_filter(request, outlet_data, user, models)
         except Exception as e:
-            log.debug(f'Pipeline outlet filter error: {e}')
+            log.debug('Pipeline outlet filter error: %s', e)
 
         # Function outlet filters
         extra_params = {
@@ -3559,7 +3559,7 @@ async def outlet_filter_handler(ctx):
                     }
                 )
     except Exception as e:
-        log.debug(f'Error running outlet filters: {e}')
+        log.debug('Error running outlet filters: %s', e)
 
 
 async def non_streaming_chat_response_handler(response, ctx):
@@ -3704,7 +3704,7 @@ async def non_streaming_chat_response_handler(response, ctx):
 
             response = build_response_object(response, merge_events_into_response(response_data, events))
         except Exception as e:
-            log.debug(f'Error occurred while processing request: {e}')
+            log.debug('Error occurred while processing request: %s', e)
             chat_id = metadata.get('chat_id')
             if getattr(request.state, 'internal', False) is not True and chat_id and is_saved_chat_id(chat_id):
                 webui_url = await Config.get('webui.url')
@@ -4815,7 +4815,7 @@ async def streaming_chat_response_handler(response, ctx):
                             if done:
                                 pass
                             else:
-                                log.debug(f'Error: {e}')
+                                log.debug('Error: %s', e)
                                 continue
                     await flush_pending_delta_data()
 
@@ -5336,7 +5336,7 @@ async def streaming_chat_response_handler(response, ctx):
                         )
 
                         retries += 1
-                        log.debug(f'Attempt count: {retries}')
+                        log.debug('Attempt count: %s', retries)
 
                         ci_item = output[-1]
                         ci_output = ''
@@ -5398,7 +5398,7 @@ async def streaming_chat_response_handler(response, ctx):
                                 else:
                                     ci_output = {'stdout': 'Code interpreter engine not configured.'}
 
-                                log.debug(f'Code interpreter output: {ci_output}')
+                                log.debug('Code interpreter output: %s', ci_output)
 
                                 # Handle error responses from event_caller
                                 # (e.g. session disconnected, timeout)

backend/open_webui/utils/models.py

@@ -307,7 +307,7 @@ async def get_all_models(request, refresh: bool = False, user: UserModel = None)
         try:
             await get_function_module_from_cache(request, function_id, function=function)
         except Exception as e:
-            log.debug(f'Failed to load function module for {function_id}: {e}')
+            log.debug('Failed to load function module for %s: %s', function_id, e)
 
     # Apply global model defaults to all models
     # Per-model overrides take precedence over global defaults
@@ -413,7 +413,7 @@ async def get_all_models(request, refresh: bool = False, user: UserModel = None)
                 filter_items_by_id[filter_id] = items
             model['filters'].extend({**item} for item in items)
 
-    log.debug(f'get_all_models() returned {len(models)} models')
+    log.debug('get_all_models() returned %s models', len(models))
 
     models_dict = {model['id']: model for model in models}
     if isinstance(request.app.state.MODELS, RedisDict):

backend/open_webui/utils/oauth.py

@@ -241,7 +241,7 @@ def _normalize_token_expiry(token: dict) -> dict:
             if exp is not None:
                 expires_at = min(expires_at, int(exp))
         except Exception as e:
-            log.debug(f'Could not read exp from id_token: {e}')
+            log.debug('Could not read exp from id_token: %s', e)
 
     token['expires_at'] = expires_at
     return token
@@ -411,7 +411,7 @@ async def get_protected_resource_metadata(server_url: str) -> ProtectedResourceM
                 )
                 if match:
                     resource_metadata_urls = [match.group(1) or match.group(2)]
-                    log.debug(f'Found resource_metadata URL: {resource_metadata_urls[0]}')
+                    log.debug('Found resource_metadata URL: %s', resource_metadata_urls[0])
                 else:
                     # Fall back to well-known resource metadata URIs (RFC 9728 §4.2)
                     parsed, base_url = get_parsed_and_base_url(server_url)
@@ -423,7 +423,7 @@ async def get_protected_resource_metadata(server_url: str) -> ProtectedResourceM
                     resource_metadata_urls.append(
                         urllib.parse.urljoin(base_url, '/.well-known/oauth-protected-resource')
                     )
-                    log.debug(f'No resource_metadata in header, trying well-known URIs: {resource_metadata_urls}')
+                    log.debug('No resource_metadata in header, trying well-known URIs: %s', resource_metadata_urls)
 
                 # Fetch Protected Resource metadata from candidate URLs
                 for resource_metadata_url in resource_metadata_urls:
@@ -436,22 +436,22 @@ async def get_protected_resource_metadata(server_url: str) -> ProtectedResourceM
 
                                 resource = resource_metadata.get('resource') or None
                                 if resource:
-                                    log.debug(f'Discovered resource indicator: {resource}')
+                                    log.debug('Discovered resource indicator: %s', resource)
 
                                 servers = resource_metadata.get('authorization_servers', [])
                                 scopes = resource_metadata.get('scopes_supported', [])
                                 if scopes:
-                                    log.debug(f'Discovered resource scopes: {scopes}')
+                                    log.debug('Discovered resource scopes: %s', scopes)
 
                                 if servers:
                                     authorization_servers = servers
-                                    log.debug(f'Discovered authorization servers: {servers}')
+                                    log.debug('Discovered authorization servers: %s', servers)
                                     break
                     except Exception as e:
-                        log.debug(f'Failed to fetch resource metadata from {resource_metadata_url}: {e}')
+                        log.debug('Failed to fetch resource metadata from %s: %s', resource_metadata_url, e)
                         continue
     except Exception as e:
-        log.debug(f'MCP Protected Resource discovery failed: {e}')
+        log.debug('MCP Protected Resource discovery failed: %s', e)
 
     return ProtectedResourceMetadata(
         resource=resource, authorization_servers=authorization_servers, scopes_supported=scopes
@@ -801,7 +801,7 @@ async def recover_static_oauth_client_metadata(connection: dict, oauth_client_in
     try:
         resource_metadata = await get_protected_resource_metadata(server_url)
     except Exception as e:
-        log.debug(f'Unable to recover static OAuth metadata for {server_url}: {e}')
+        log.debug('Unable to recover static OAuth metadata for %s: %s', server_url, e)
         return oauth_client_info
 
     recovered = {**oauth_client_info}
@@ -946,9 +946,7 @@ class OAuthClientManager:
             if not authorization_url:
                 return True
         except Exception as e:
-            log.debug(
-                f'Skipping OAuth preflight for client {client_info.client_id}: {e}',
-            )
+            log.debug('Skipping OAuth preflight for client %s: %s', client_info.client_id, e)
             return True
 
         try:
@@ -994,7 +992,7 @@ class OAuthClientManager:
 
                         return False
         except Exception as e:
-            log.debug(f'Skipping OAuth preflight network check for client {client_info.client_id}: {e}')
+            log.debug('Skipping OAuth preflight network check for client %s: %s', client_info.client_id, e)
 
         return True
 
@@ -1043,7 +1041,7 @@ class OAuthClientManager:
                 or session.expires_at is None
                 or datetime.now() + timedelta(minutes=5) >= datetime.fromtimestamp(session.expires_at)
             ):
-                log.debug(f'Token refresh needed for user {user_id}, client_id {session.provider}')
+                log.debug('Token refresh needed for user %s, client_id %s', user_id, session.provider)
                 refreshed_token = await self._refresh_token(session)
                 if refreshed_token:
                     return refreshed_token
@@ -1160,7 +1158,7 @@ class OAuthClientManager:
 
                         _normalize_token_expiry(new_token_data)
 
-                        log.debug(f'Token refresh successful for client_id {client_id}')
+                        log.debug('Token refresh successful for client_id %s', client_id)
                         return new_token_data
                     else:
                         error_text = await r.text()
@@ -1326,8 +1324,9 @@ class OAuthManager:
             # the session (#24618).
             if (session.provider or '').startswith('mcp:'):
                 log.debug(
-                    f'Skipping MCP session {session.id} (provider={session.provider}) '
-                    f'in SSO OAuthManager — handled by oauth_client_manager'
+                    'Skipping MCP session %s (provider=%s) in SSO OAuthManager — handled by oauth_client_manager',
+                    session.id,
+                    session.provider,
                 )
                 return None
 
@@ -1336,7 +1335,7 @@ class OAuthManager:
                 or session.expires_at is None
                 or datetime.now() + timedelta(minutes=5) >= datetime.fromtimestamp(session.expires_at)
             ):
-                log.debug(f'Token refresh needed for user {user_id}, provider {session.provider}')
+                log.debug('Token refresh needed for user %s, provider %s', user_id, session.provider)
                 refreshed_token = await self._refresh_token(session)
                 if refreshed_token:
                     return refreshed_token
@@ -1452,7 +1451,7 @@ class OAuthManager:
 
                         _normalize_token_expiry(new_token_data)
 
-                        log.debug(f'Token refresh successful for provider {provider}')
+                        log.debug('Token refresh successful for provider %s', provider)
                         return new_token_data
                     else:
                         error_text = await r.text()
@@ -1511,10 +1510,10 @@ class OAuthManager:
                 elif isinstance(claim_data, int):
                     oauth_roles = [str(claim_data)]
 
-            log.debug(f'Oauth Roles claim: {oauth_claim}')
-            log.debug(f'User roles from oauth: {oauth_roles}')
-            log.debug(f'Accepted user roles: {oauth_allowed_roles}')
-            log.debug(f'Accepted admin roles: {oauth_admin_roles}')
+            log.debug('Oauth Roles claim: %s', oauth_claim)
+            log.debug('User roles from oauth: %s', oauth_roles)
+            log.debug('Accepted user roles: %s', oauth_allowed_roles)
+            log.debug('Accepted admin roles: %s', oauth_admin_roles)
 
             # If roles are present in the token, they must match; otherwise deny access
             if oauth_roles:
@@ -1591,7 +1590,7 @@ class OAuthManager:
             # Determine creator ID: Prefer admin, fallback to current user if no admin exists
             admin_user = await Users.get_super_admin_user()
             creator_id = admin_user.id if admin_user else user.id
-            log.debug(f'Using creator ID {creator_id} for potential group creation.')
+            log.debug('Using creator ID %s for potential group creation.', creator_id)
 
             for group_name in user_oauth_groups:
                 if group_name not in all_group_names:
@@ -1622,10 +1621,10 @@ class OAuthManager:
                 all_available_groups = await Groups.get_all_groups(db=db)
                 log.debug('Refreshed list of all available groups after creation.')
 
-        log.debug(f'Oauth Groups claim: {oauth_claim}')
-        log.debug(f'User oauth groups: {user_oauth_groups}')
-        log.debug(f"User's current groups: {[g.name for g in user_current_groups]}")
-        log.debug(f'All groups available in OpenWebUI: {[g.name for g in all_available_groups]}')
+        log.debug('Oauth Groups claim: %s', oauth_claim)
+        log.debug('User oauth groups: %s', user_oauth_groups)
+        log.debug("User's current groups: %s", [g.name for g in user_current_groups])
+        log.debug('All groups available in OpenWebUI: %s', [g.name for g in all_available_groups])
 
         # Remove groups that user is no longer a part of
         for group_model in user_current_groups:
@@ -1635,7 +1634,7 @@ class OAuthManager:
                 and not is_in_blocked_groups(group_model.name, blocked_groups)
             ):
                 # Remove group from user
-                log.debug(f'Removing user from group {group_model.name} as it is no longer in their oauth groups')
+                log.debug('Removing user from group %s as it is no longer in their oauth groups', group_model.name)
                 await Groups.remove_users_from_group(group_model.id, [user.id], db=db)
 
                 # In case a group is created, but perms are never assigned to the group by hitting "save"
@@ -1663,7 +1662,7 @@ class OAuthManager:
                 and not is_in_blocked_groups(group_model.name, blocked_groups)
             ):
                 # Add user to group
-                log.debug(f'Adding user to group {group_model.name} as it was found in their oauth groups')
+                log.debug('Adding user to group %s as it was found in their oauth groups', group_model.name)
 
                 await Groups.add_users_to_group(group_model.id, [user.id], db=db)
 
@@ -1916,7 +1915,7 @@ class OAuthManager:
                         if new_name and new_name != user.name:
                             await Users.update_user_by_id(user.id, {'name': new_name}, db=db)
                             user.name = new_name
-                            log.debug(f'Updated name for user {user.email}')
+                            log.debug('Updated name for user %s', user.email)
 
                 if auth_config.OAUTH_UPDATE_EMAIL_ON_LOGIN:
                     email_claim = auth_config.OAUTH_EMAIL_CLAIM
@@ -1931,7 +1930,7 @@ class OAuthManager:
                             else:
                                 await Auths.update_email_by_id(user.id, new_email.lower(), db=db)
                                 user.email = new_email.lower()
-                                log.debug(f'Updated email for user {user.id}')
+                                log.debug('Updated email for user %s', user.id)
 
                 # Update profile picture if enabled and different from current
                 if auth_config.OAUTH_UPDATE_PICTURE_ON_LOGIN:
@@ -1946,7 +1945,7 @@ class OAuthManager:
                         )
                         if processed_picture_url != user.profile_image_url:
                             await Users.update_user_profile_image_url_by_id(user.id, processed_picture_url, db=db)
-                            log.debug(f'Updated profile picture for user {user.email}')
+                            log.debug('Updated profile picture for user %s', user.email)
             else:
                 # If the user does not exist, check if signups are enabled
                 if auth_config.ENABLE_OAUTH_SIGNUP:
@@ -2172,7 +2171,7 @@ class OAuthManager:
                     matched_issuer = provider_issuer
                     break
             except Exception as e:
-                log.debug(f'Back-channel logout: error checking provider {provider_name}: {e}')
+                log.debug('Back-channel logout: error checking provider %s: %s', provider_name, e)
                 continue
 
         if not matched_provider or not matched_client_id or not matched_jwks_uri:
@@ -2249,10 +2248,12 @@ class OAuthManager:
                 users_to_logout.append(user)
 
         if not users_to_logout and sid:
-            log.debug(f'Back-channel logout: no user found by sub, sid-based lookup not yet supported (sid={sid})')
+            log.debug('Back-channel logout: no user found by sub, sid-based lookup not yet supported (sid=%s)', sid)
 
         if not users_to_logout:
-            log.debug(f'Back-channel logout: no matching user for provider={matched_provider}, sub={sub}, sid={sid}')
+            log.debug(
+                'Back-channel logout: no matching user for provider=%s, sub=%s, sid=%s', matched_provider, sub, sid
+            )
             return JSONResponse(status_code=200, content={})
 
         # 9. Revoke tokens and delete sessions

backend/open_webui/utils/tools.py

@@ -1187,7 +1187,7 @@ async def get_terminal_cwd(
                     data = await resp.json()
                     return data.get('cwd')
     except Exception as e:
-        log.debug(f'Failed to fetch terminal CWD: {e}')
+        log.debug('Failed to fetch terminal CWD: %s', e)
     return None
 
 
@@ -1226,7 +1226,7 @@ async def get_terminal_system_prompt(
                     data = await resp.json()
                     return data.get('prompt')
     except Exception as e:
-        log.debug(f'Failed to fetch terminal system prompt: {e}')
+        log.debug('Failed to fetch terminal system prompt: %s', e)
     return None
 
 
@@ -1447,7 +1447,7 @@ async def get_tool_server_data(url: str, headers: dict | None) -> dict[str, Any]
             error = str(err)
         raise Exception(error)
 
-    log.debug(f'Fetched data: {res}')
+    log.debug('Fetched data: %s', res)
     return res
 
 

backend/open_webui/utils/webhook.py

@@ -29,7 +29,7 @@ def _event_text(message: str, description: str | None = None, event_data: dict |
 
 async def post_webhook(name: str, url: str, message: str, event_data: dict, description: str | None = None) -> bool:
     try:
-        log.debug(f'post_webhook: {url}, {message}, {event_data}')
+        log.debug('post_webhook: %s, %s, %s', url, message, event_data)
         # Block private-IP / loopback / cloud-metadata targets — the URL is
         # caller-controlled (user notification settings under
         # ENABLE_USER_WEBHOOKS, automation notification triggers).
@@ -83,7 +83,7 @@ async def post_webhook(name: str, url: str, message: str, event_data: dict, desc
         else:
             payload = event_data
 
-        log.debug(f'payload: {payload}')
+        log.debug('payload: %s', payload)
         async with get_ssrf_safe_session() as session:
             async with session.post(
                 url,
@@ -93,7 +93,7 @@ async def post_webhook(name: str, url: str, message: str, event_data: dict, desc
             ) as r:
                 r_text = await r.text()
                 r.raise_for_status()
-                log.debug(f'r.text: {r_text}')
+                log.debug('r.text: %s', r_text)
 
         return True
     except Exception as e: