Coverage for apps / core / logging.py: 93%

1"""JSON log formatter for production.""" 

2 

3import json 

4import logging 

5from datetime import UTC, datetime 

6 

7 

8class JSONFormatter(logging.Formatter): 

9 """Produces JSON log lines for machine parsing in production.""" 

10 

11 def format(self, record): 

12 log_entry = { 

13 "timestamp": datetime.now(UTC).isoformat(), 

14 "level": record.levelname, 

15 "logger": record.name, 

16 "message": record.getMessage(), 

17 "module": record.module, 

18 } 

19 

20 # Add request_id if available 

21 if hasattr(record, "request_id"): 

22 log_entry["request_id"] = record.request_id 

23 

24 # Add extra fields 

25 for key in ("username", "ip", "path", "reason", "endpoint", "action", "target_username"): 

26 if hasattr(record, key): 

27 log_entry[key] = getattr(record, key) 

28 

29 if record.exc_info and record.exc_info[1]: 

30 log_entry["exception"] = self.formatException(record.exc_info) 

31 

32 return json.dumps(log_entry, default=str)