Lars
1298bd235f
- Create feature_logger.py with JSON logging infrastructure - Add log_feature_usage() calls to all 9 routers after check_feature_access() - Logs written to /app/logs/feature-usage.log - Tracks all usage (not just violations) for future analysis - Phase 2: Non-blocking monitoring complete Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
77 lines
2.7 KiB
Python
77 lines
2.7 KiB
Python
"""
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Feature Usage Logger for Mitai Jinkendo
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Logs all feature access checks to a separate JSON log file for analysis.
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Phase 2: Non-blocking monitoring of feature usage.
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"""
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import logging
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import json
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from datetime import datetime
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from pathlib import Path
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# ── Setup Feature Usage Logger ───────────────────────────────────────────────
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feature_usage_logger = logging.getLogger('feature_usage')
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feature_usage_logger.setLevel(logging.INFO)
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feature_usage_logger.propagate = False # Don't propagate to root logger
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# Ensure logs directory exists
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LOG_DIR = Path('/app/logs')
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LOG_DIR.mkdir(parents=True, exist_ok=True)
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# FileHandler for JSON logs
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log_file = LOG_DIR / 'feature-usage.log'
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file_handler = logging.FileHandler(log_file)
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file_handler.setLevel(logging.INFO)
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file_handler.setFormatter(logging.Formatter('%(message)s')) # JSON only
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feature_usage_logger.addHandler(file_handler)
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# Also log to console in dev (optional)
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# console_handler = logging.StreamHandler()
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# console_handler.setFormatter(logging.Formatter('[FEATURE-USAGE] %(message)s'))
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# feature_usage_logger.addHandler(console_handler)
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# ── Logging Function ──────────────────────────────────────────────────────────
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def log_feature_usage(user_id: str, feature_id: str, access: dict, action: str):
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"""
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Log feature usage in structured JSON format.
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Args:
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user_id: Profile UUID
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feature_id: Feature identifier (e.g., 'weight_entries', 'ai_calls')
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access: Result from check_feature_access() containing:
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- allowed: bool
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- limit: int | None
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- used: int
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- remaining: int | None
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- reason: str
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action: Type of action (e.g., 'create', 'export', 'analyze')
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Example log entry:
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{
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"timestamp": "2026-03-20T15:30:45.123456",
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"user_id": "abc-123",
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"feature": "weight_entries",
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"action": "create",
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"used": 5,
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"limit": 100,
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"remaining": 95,
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"allowed": true,
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"reason": "within_limit"
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}
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"""
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entry = {
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"timestamp": datetime.now().isoformat(),
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"user_id": user_id,
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"feature": feature_id,
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"action": action,
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"used": access.get('used', 0),
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"limit": access.get('limit'), # None for unlimited
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"remaining": access.get('remaining'), # None for unlimited
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"allowed": access.get('allowed', True),
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"reason": access.get('reason', 'unknown')
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}
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feature_usage_logger.info(json.dumps(entry))
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