Structured Logging with slog

### Tasks - [ ] Replace all `fmt.Println`, `fmt.Printf`, `log.Printf` usages with `log/slog` (Go standard library, 1.21+) - [ ] Configure logger in `main.go`: - Development (`ENV=development`): `slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelDebug})` - Production (`ENV=production`): `slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo})` - Set as default: `slog.SetDefault(logger)` - [ ] Add contextual fields to key operations: - HTTP requests: `request_id`, `method`, `path`, `status`, `duration_ms` - Run events: `run_id`, `job_id`, `status` - Auth events: `user_id`, `action` - [ ] Never log passwords, tokens, or secrets - [ ] Update chi request logger middleware to use `slog` ### Acceptance Criteria - [ ] All log output goes through `slog` — no raw `fmt.Println` remaining - [ ] JSON log output in production mode - [ ] Human-readable log output in development mode - [ ] `run_id` and `job_id` present in all run-related log entries - [ ] No sensitive data (tokens, passwords) appears in logs

ottomata commented

2026-02-23 10:07:24 +00:00

Owner

Tasks

Replace all fmt.Println, fmt.Printf, log.Printf usages with log/slog (Go standard library, 1.21+)
Configure logger in main.go:
- Development (ENV=development): slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelDebug})
- Production (ENV=production): slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo})
- Set as default: slog.SetDefault(logger)
Add contextual fields to key operations:
- HTTP requests: request_id, method, path, status, duration_ms
- Run events: run_id, job_id, status
- Auth events: user_id, action
Never log passwords, tokens, or secrets
Update chi request logger middleware to use slog

Acceptance Criteria

All log output goes through slog — no raw fmt.Println remaining
JSON log output in production mode
Human-readable log output in development mode
run_id and job_id present in all run-related log entries
No sensitive data (tokens, passwords) appears in logs

ottomata added this to the Phase 8 project

2026-02-23 10:09:19 +00:00

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Structured Logging with slog #79

Tasks

Acceptance Criteria