Parse a log line, handling JSON structured logs. Returns (message, level) tuple.
(log_line: str)
| 44 | |
| 45 | |
| 46 | def parse_structured_log(log_line: str) -> tuple[str, str]: |
| 47 | """Parse a log line, handling JSON structured logs. |
| 48 | |
| 49 | Returns (message, level) tuple. |
| 50 | """ |
| 51 | if not log_line or not log_line.strip().startswith("{"): |
| 52 | return log_line, _get_level_from_text(log_line) |
| 53 | |
| 54 | try: |
| 55 | data = json.loads(log_line) |
| 56 | except (json.JSONDecodeError, ValueError): |
| 57 | return log_line, _get_level_from_text(log_line) |
| 58 | |
| 59 | if not isinstance(data, dict): |
| 60 | return log_line, _get_level_from_text(log_line) |
| 61 | |
| 62 | msg = data.get("msg") or data.get("message") or data.get("body") or "" |
| 63 | level_raw = data.get("level") or data.get("levelname") or data.get("severity") or "" |
| 64 | |
| 65 | if not msg: |
| 66 | return log_line, _get_level_from_text(log_line) |
| 67 | |
| 68 | level = LEVEL_ALIASES.get(level_raw.lower(), "INFO") if level_raw else "INFO" |
| 69 | return msg, level |
| 70 | |
| 71 | |
| 72 | def _get_level(log_line: str) -> str: |
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