Beyond Console.log
Production applications need proper error tracking. We built a comprehensive logging system that captures, persists, and surfaces errors effectively.
Core Components
1. Logger Service
A centralized logger with five severity levels:
logger.debug(message, context?);
logger.info(message, context?);
logger.warn(message, context?);
logger.error(message, error?, context?);
logger.critical(message, error?, context?);2. Trace IDs
Every error gets a unique trace ID displayed to users. Support can use this to find the exact error in our logs.
3. Error Fingerprinting
We generate fingerprints to deduplicate similar errors, preventing log spam while tracking occurrence counts.
4. Admin Dashboard
The /admin/logs page provides:
- Filterable error list with pagination
- Real-time log streaming via SSE
- Error detail view with full stack traces
- Resolution tracking and notes
Database Schema
Errors are stored in the error_logs table with metadata like user ID, IP, user agent, and request URL for full context.
